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Beginner Guide New to PreciseEV? Start with the Beginner Guide. 7 short lessons, in order: from your first research session to comparing prices, reading +EV and arbitrage, and tracking every result. Start the guide 7 lessons · 29 min

167 results

Guides · TutorialsBeginner Guide: learn PreciseEV in 7 lessonsSeven short lessons, in order: research a player, compare prices, read +EV and arbitrage, filter trends and track your bets.Read guide
Guides · Odds and probabilityAmerican OddsRead plus and minus prices and convert American odds to implied probability.Read guide
Guides · Risk and bankrollBankroll ManagementSet a fixed budget, keep complete records, and see why no staking formula removes risk.Read guide
Guides · Research and strategyBetting Line MovementRecord matching quotes over time and learn what a moving line can and cannot tell you.Read guide
Guides · Models and statisticsBetting ModelDefine what a model predicts, test it on later data, and compare its estimates with the price.Read guide
Guides · Odds and probabilityHow to Convert Betting Odds to Implied ProbabilityTurn American or decimal odds into a percentage and see why it includes the market margin.Read guide
Guides · Research and strategyClosing Line Value (CLV): Meaning, Math, and LimitsCompare the price you took with the closing line, and see what that comparison can and cannot show.Read guide
Guides · Risk and bankrollCommon Sports Betting MistakesAvoid cherry-picked records, small samples, and mismatched lines when you judge a betting history.Read guide
Guides · Odds and probabilityDecimal OddsMultiply your stake by the decimal price for total return, and take its reciprocal for probability.Read guide
Guides · Odds and probabilityFractional OddsRead prices like 5/2 as profit per stake, then convert them to decimal odds and implied probability.Read guide
Guides · Odds and probabilityHow Sports Betting Odds WorkOdds describe the payout on a bet, and converting them to a probability does not make them a forecast.Read guide
Guides · Models and statisticsHow to Build a Sports Betting Model in ExcelLay out a spreadsheet model with timestamped inputs, a simple baseline, and a held-out test period.Read guide
Guides · Research and strategyHow to Track Sports BetsRecord each bet’s price, stake, and time before the event, then review every result, pushes included.Read guide
Guides · Odds and probabilityJuice and VigThe margin built into a market’s prices raises the win rate you need to break even.Read guide
Guides · Odds and probabilitySports Betting Line Shopping: How to Compare Odds and PricesCompare the same market and line across sportsbooks and see how a better price lowers break-even.Read guide
Guides · Odds and probabilityMoneylineA moneyline is a bet on the winner with no point spread, so check whether overtime or a draw counts.Read guide
Guides · Odds and probabilityNo-Vig Odds: How to Estimate a Fair Market PriceRemove the margin from a two-way market to estimate a fair price, and know the assumption behind it.Read guide
Guides · Markets and bet typesPick’em Bets Explained: Payouts, Probability, and Break-EvenSee how multi-leg pick’em entries pay, and how leg count and payout set the hit rate you need.Read guide
Guides · Research and strategyPoint SpreadA spread handicaps the final score, so check the exact number, the push rule, and the price.Read guide
Guides · Research and strategyPositive Expected Value Betting: A Guide to EV and +EV BetsA +EV bet beats its break-even price under your probability estimate, and it can still lose.Read guide
Guides · Odds and probabilityPrediction Market Odds Converter: Cents, Implied Probability, and OddsConvert a contract price in cents to implied probability and American, decimal, or fractional odds.Read guide
Guides · Research and strategyExpected Value in Sports Betting: A Worked ExampleWork through an expected value calculation from a stake, a price, and a probability estimate.Read guide
Guides · Markets and bet typesProp BetsA player prop settles on one athlete’s statistic, and role and playing time matter more than a hit rate.Read guide
Guides · Research and strategySports Betting Terms: A Plain-Language GlossaryGet plain definitions of odds, lines, implied probability, vig, expected value, and closing line value.Read guide
Guides · Markets and bet typesTotals (Over/Under)A total sets a combined-score threshold, and the market’s period and push rules decide how it settles.Read guide
Guides · Sportsbook termsSports Betting Promotions: Compare Bonus Value, Rules, and RiskRead the terms line by line and estimate what a promotion is worth before you risk money to qualify.Read guide
State guides · statewideOnline sports betting in ArizonaArizona launched its statewide mobile market in 2021. The Department of Gaming licenses event wagering operators and tribal partners; confirm current approvals and any market restrictions in its official materials.Read state guide
State guides · statewideOnline sports betting in ArkansasArkansas allows statewide mobile wagering through a casino-partner model. Current market reporting names Betly, Bet Saracen, and Oaklawn Sports; the Racing Commission is the place to verify active licenses and partner details.Read state guide
State guides · statewideOnline sports betting in ColoradoColorado voters approved sports betting in 2019, and the market opened in 2020. The Division of Gaming oversees licenses, rules, and responsible-gambling requirements; its current license records take precedence over any comparison list.Read state guide
State guides · statewideOnline sports betting in ConnecticutConnecticut uses a limited-partner structure involving the state lottery and federally recognized tribes. Current market reporting names DraftKings, FanDuel, and Fanatics Sportsbook; verify the active partner list with the state and tribal authorities.Read state guide
State guides · statewideOnline sports betting in DelawareDelaware combines retail sportsbooks at its casinos with a statewide mobile option. Current market reporting identifies DraftKings as the online provider; consult the Delaware Lottery for the current app and retail rules.Read state guide
State guides · statewideOnline sports betting in FloridaFlorida sports betting operates through the state–Seminole Tribe compact. Hard Rock Bet is the reported online sportsbook; the compact and regulator explain the tribal framework and where bets may be placed.Read state guide
State guides · statewideOnline sports betting in IllinoisIllinois has an established statewide mobile market with multiple licensed apps and casino sportsbooks. The Gaming Board publishes the controlling rules, approved operators, and market-specific restrictions.Read state guide
State guides · statewideOnline sports betting in IndianaIndiana permits statewide mobile betting and retail books at licensed venues. The Gaming Commission maintains official wagering regulations and operator information; app catalogs can change when licenses or market partnerships change.Read state guide
State guides · statewideOnline sports betting in IowaIowa offers mobile wagering as well as books at licensed casinos. Check the Racing and Gaming Commission for current licensees and settlement rules; signup, age, and geolocation checks remain operator-specific.Read state guide
State guides · statewideOnline sports betting in KansasKansas allows online betting through licensed sportsbook partners and retail wagering at approved venues. The Commission and Kansas Lottery publish the active market rules and partner list.Read state guide
State guides · statewideOnline sports betting in KentuckyKentucky launched regulated online and retail betting in 2023. Sportsbook operators work through licensed horse-racing track partners, so check the Horse Racing Commission for current apps, track affiliations, and eligibility rules.Read state guide
State guides · statewideOnline sports betting in LouisianaLouisiana is an important exception to a simple statewide label: local voter approval determines whether sports wagering is permitted in a parish. Mobile geolocation and the current parish map matter, so verify the permitted location before relying on an app.Read state guide
State guides · statewideOnline sports betting in MaineMaine’s mobile market is tied to partnerships with federally recognized tribes. Current reporting names DraftKings and Caesars Sportsbook; confirm active tribal agreements and license status with the Gambling Control Unit.Read state guide
State guides · statewideOnline sports betting in MarylandMaryland has statewide mobile betting alongside casino and venue sportsbooks. Its regulator publishes operator, consumer-protection, and self-exclusion information; the active app list is broader than the names shown in any short guide.Read state guide
State guides · statewideOnline sports betting in MassachusettsMassachusetts has mobile apps and retail sportsbooks at licensed casinos and racetracks. The Gaming Commission sets local restrictions and publishes the active operator list; a national brand may offer different markets here than elsewhere.Read state guide
State guides · statewideOnline sports betting in MichiganMichigan regulates online sportsbooks and retail wagering through commercial and tribal partners. The Gaming Control Board maintains current operator and responsible-gambling information, including distinctions between statewide apps and property-specific offerings.Read state guide
State guides · limitedOnline sports betting in MississippiMississippi does not have statewide mobile wagering. Some casino-linked apps may accept bets only while a user is physically at an approved casino property, and retail books are also venue-based. Check the Commission’s current rules and the specific casino location.Read state guide
State guides · statewideOnline sports betting in MissouriMissouri’s market launched December 1, 2025 after voters approved Amendment 2. DraftKings and Circa Sports have untethered online licenses; several other brands operate through casino or sports-venue partners.Read state guide
State guides · limitedOnline sports betting in MontanaMontana’s Sports Bet Montana product is tied to authorized locations rather than statewide mobile wagering from anywhere. Location restrictions and permitted bet types are central to checking whether a mobile session is eligible.Read state guide
State guides · retailOnline sports betting in NebraskaNebraska permits in-person sports wagers at licensed racetrack casinos but has no statewide mobile sportsbook market. A phone app should not be treated as legal statewide betting simply because it is downloadable or geolocates nearby.Read state guide
State guides · statewideOnline sports betting in NevadaNevada has a long-running retail market and a range of sportsbook apps. Many operators require first-time registration at an affiliated casino, so review the specific book’s account setup rules before planning to bet remotely.Read state guide
State guides · statewideOnline sports betting in New HampshireNew Hampshire uses a single-provider arrangement with DraftKings for online and retail sports wagering. The Lottery publishes official rules, eligibility information, and retail locations.Read state guide
State guides · statewideOnline sports betting in New JerseyNew Jersey combines statewide online apps with sportsbooks at casinos and racetracks. The Division of Gaming Enforcement and state self-exclusion resources are the primary references for current operator and consumer rules.Read state guide
State guides · retailOnline sports betting in New MexicoNew Mexico has on-site tribal casino sportsbooks under tribal gaming compacts, but no state-licensed statewide mobile market. The property and tribal gaming authority determine what is offered and where a wager can be placed.Read state guide
State guides · statewideOnline sports betting in New YorkNew York has a statewide mobile market and retail books at approved venues. The Gaming Commission publishes active license and rule information; check its current list for app availability and state-specific market restrictions.Read state guide
State guides · statewideOnline sports betting in North CarolinaNorth Carolina’s statewide mobile market opened in 2024, alongside betting at approved venues. The Lottery Commission’s current rules and operator listings control; event, college, and player-prop restrictions can differ by market.Read state guide
State guides · retailOnline sports betting in North DakotaSports wagering in North Dakota is offered at participating tribal casinos rather than through a statewide commercial mobile market. Tribal gaming authorities and the specific property govern current on-site options.Read state guide
State guides · statewideOnline sports betting in OhioOhio has a large statewide online market alongside retail books at approved locations. The Casino Control Commission’s current list is the best way to check which operators remain licensed and what restrictions apply.Read state guide
State guides · statewideOnline sports betting in OregonOregon Lottery runs the state’s online sportsbook through a single-provider arrangement with DraftKings. Tribal casinos may also have retail books under their own gaming compacts.Read state guide
State guides · statewideOnline sports betting in PennsylvaniaPennsylvania licenses online operators through casino relationships and also offers retail sportsbooks. The Gaming Control Board lists current certificates, rules, and self-exclusion tools.Read state guide
State guides · statewideOnline sports betting in Rhode IslandRhode Island’s online sportsbook is a state lottery product, with retail locations at the state’s two casinos. Sportsbook Rhode Island is reported as the sole provider; current Lottery rules control availability and settlement.Read state guide
State guides · retailOnline sports betting in South DakotaSouth Dakota wagering is limited to licensed Deadwood casinos and participating tribal properties. There is no statewide mobile sportsbook market; location and property rules determine what is available.Read state guide
State guides · online-onlyOnline sports betting in TennesseeTennessee is an online-only sports wagering state, with no casino or retail sportsbook network. Its Sports Wagering Council handles licensing, consumer rules, and operator updates.Read state guide
State guides · online-onlyOnline sports betting in VermontVermont offers online betting through a small state-authorized operator group and has no retail sportsbook locations. The Department of Liquor and Lottery publishes current platform and responsible-play information.Read state guide
State guides · statewideOnline sports betting in VirginiaVirginia offers mobile wagering statewide and retail sportsbooks at approved venues. The Virginia Lottery regulates licenses and publishes rules, exclusions, and active operator information.Read state guide
State guides · limitedOnline sports betting in WashingtonWashington permits sports betting through tribal casino compacts. Casino-linked apps are geofenced to the tribal property, so an account does not allow statewide mobile wagering from anywhere in Washington.Read state guide
State guides · statewideOnline sports betting in West VirginiaWest Virginia licenses online platforms through casino partners and offers retail wagering at approved venues. The West Virginia Lottery posts market rules, active apps, and voluntary self-exclusion details.Read state guide
State guides · pendingOnline sports betting in WisconsinWisconsin authorized a tribal-run statewide mobile model in 2026, but app access has not launched as of this review. Retail betting at tribal casinos is a separate, existing option; wait for official launch and compact updates before treating an app as available.Read state guide
State guides · online-onlyOnline sports betting in WyomingWyoming is an online-only state with no retail casino sportsbook network. The Gaming Commission regulates app operators and maintains current rules and license information.Read state guide
State guides · provincialOnline sports betting in CanadaCanada’s federal Criminal Code was amended to let provinces and territories conduct and manage single-event sports betting in their own jurisdictions. That created no single national sportsbook list: official options, private-operator rules, age limits, and product menus vary by province or territory.Read state guide
State guides · provincialOnline sports betting in AlbertaPlay Alberta is the provincial government’s regulated online gaming site and includes sports betting. Check AGLC for current regulatory information and the Play Alberta account terms for location, age, eligible events, and available markets.Read state guide
State guides · provincialOnline sports betting in British ColumbiaBCLC identifies PlayNow Sports as B.C.’s only legal online sportsbook and PROLINE as its retail product. The online account is for eligible players physically in B.C.; BCLC rules explain local sports and settlement conditions.Read state guide
State guides · provincialOnline sports betting in ManitobaManitoba Liquor & Lotteries operates PlayNow in Manitoba, using BCLC as a service provider. Accounts are geo-restricted to people located in Manitoba; Sport Select and retail products have their own rules.Read state guide
State guides · atlanticOnline sports betting in New BrunswickAtlantic Lottery is the official provincial lottery provider for sports products such as PRO•LINE. Single-event wagers and eligible markets can vary by sport, province, and current rules; check the live event list before relying on a product description.Read state guide
State guides · atlanticOnline sports betting in Newfoundland and LabradorAtlantic Lottery provides the official sports wagering products, including PRO•LINE, across its member provinces. The available events, bet types, online account requirements, and retail rules can change, so verify the current offering on the lottery site.Read state guide
State guides · territorialOnline sports betting in Northwest TerritoriesSports betting products in the Northwest Territories are connected to territorial lottery administration and Sport Select rules. The Western Canada Lottery Corporation provides game conditions; check Sport North for current sales channels and territory-specific details.Read state guide
State guides · atlanticOnline sports betting in Nova ScotiaAtlantic Lottery offers the official sports betting product line for Nova Scotia. Its rules explain eligible single-event offerings, event selection, and account or retail purchase steps; a market offered in another province may not be available here.Read state guide
State guides · territorialOnline sports betting in NunavutNunavut sports lottery products are governed by territorial and Western Canada Lottery Corporation conditions. The WCLC game rules explain Sport Select, while Nunavut Lottery can confirm current purchase channels and local eligibility.Read state guide
State guides · open-regulatedOnline sports betting in OntarioOntario is Canada’s distinct open, regulated iGaming market: private operators must be registered by the AGCO and contracted with iGaming Ontario, while OLG.ca is separately operated by OLG. Players must be physically in Ontario to place wagers; the official live directory identifies which sites include sports betting.Read state guide
State guides · atlanticOnline sports betting in Prince Edward IslandAtlantic Lottery operates the official PRO•LINE sports betting product for Prince Edward Island. Event and market availability is not identical across sports or provinces; the current event list and local account terms are the practical source of truth.Read state guide
State guides · provincialOnline sports betting in QuebecLoto-Québec offers sports betting through Mise-o-jeu and its online gaming platform Espacejeux. The official event list and rules determine which sports, markets, and purchase channels are available in Quebec.Read state guide
State guides · provincialOnline sports betting in SaskatchewanSaskatchewan’s PlayNow platform is managed by SaskGaming, operated by SIGA, and regulated by the Saskatchewan Liquor and Gaming Authority. Official provincial announcements describe this regulated sportsbook; confirm account location and current market details directly with the operator.Read state guide
State guides · territorialOnline sports betting in YukonLotteries Yukon and the Western Canada Lottery Corporation publish the applicable lottery and Sport Select rules. Verify current territory-specific purchase options and eligible events with Lotteries Yukon before relying on a national sports betting overview.Read state guide
Sportsbooks · SportsbooksBetMGM guideHow BetMGM Sportsbook works, how to claim a BetMGM sign-up bonus, and what Bonus Bets and first-bet offers mean. Offer details reviewed September 2026.Read sportsbook guide
Sportsbooks · Sportsbooksbet365 guideLearn how the bet365 sportsbook works and how its sign-up bonus is claimed. The advertised $10-to-$365 campaign expired September 22, 2026; check the live state offer.Read sportsbook guide
Sportsbooks · SportsbooksBetRivers guideBetRivers sportsbook guide covering how online wagers work, how to find the BetRivers welcome bonus, and the state-specific terms to check.Read sportsbook guide
Sportsbooks · SportsbooksCaesars Sportsbook guideHow Caesars Sportsbook works, how to check a Caesars Sportsbook sign-up offer, and how Caesars Rewards and Bonus Bets fit together.Read sportsbook guide
Sportsbooks · SportsbooksDraftKings Sportsbook guideDraftKings Sportsbook review: how to place bets, how the DraftKings welcome bonus works, and why current offers vary by state and date.Read sportsbook guide
Sportsbooks · SportsbooksFanatics Sportsbook guideFanatics Sportsbook guide to how wagers work, FanCash rewards, and how to find the current Fanatics Sportsbook welcome bonus by state.Read sportsbook guide
Sportsbooks · SportsbooksFanDuel Sportsbook guideFanDuel Sportsbook sign-up bonus and app guide: learn how odds, accepted wagers, Bonus Bets, and state-specific new-user promotions work.Read sportsbook guide
Sportsbooks · SportsbooksHard Rock Bet guideHard Rock Bet sportsbook guide: how its mobile betting app works and the September 2026 Bet $5, Get $100 Bonus Bets promotion terms.Read sportsbook guide
Sportsbooks · SportsbookstheScore Bet guidetheScore Bet (formerly ESPN BET) guide: how the sportsbook operates, what changed in the brand transition, and where to find current sign-up bonuses.Read sportsbook guide
Sportsbooks · SportsbooksBally Bet guideBally Bet sportsbook review and sign-up bonus guide. Learn how its app works and why the Bet $10, Get $50 offer depends on state.Read sportsbook guide
Sportsbooks · SportsbooksDesert Diamond Sports guideDesert Diamond Sports sportsbook guide for Arizona: how the app works, who can use it, and how to check Welcome Deposit Match and Bet & Get offers.Read sportsbook guide
Sportsbooks · DFS and pick’em appsDraftKings Fantasy guideDraftKings Fantasy guide: how salary-cap and draft contests work, how to claim a DraftKings Fantasy sign-up offer, and how DFS differs from sportsbook betting.Read sportsbook guide
Sportsbooks · DFS and pick’em appsFanDuel Fantasy guideHow FanDuel Fantasy works, its salary-cap and head-to-head contests, and how to check FanDuel Fantasy sign-up promotions separately from sportsbook bonuses.Read sportsbook guide
Sportsbooks · DFS and pick’em appsPrizePicks guidePrizePicks guide: how player projections and pick’em lineups work, plus the current PLAYBOOK sign-up promotion and its Bonus Lineup terms.Read sportsbook guide
Sportsbooks · DFS and pick’em appsUnderdog Fantasy guideUnderdog Fantasy guide to drafts, pick’em entries, and how to find current Underdog sign-up bonuses and state-specific offer terms.Read sportsbook guide
Sportsbooks · DFS and pick’em appsSleeper Picks guideSleeper Picks bonus and app guide: how player-pick entries work and how the first-deposit match up to $100 is applied.Read sportsbook guide
Sportsbooks · DFS and pick’em appsBetr Picks guideBetr Picks guide: how player-projection entries work and what to check in the current Betr Picks new-user No Sweat Tokens offer.Read sportsbook guide
Sportsbooks · DFS and pick’em appsDabble guideHow Dabble works and what its current $5-to-$50 new-user offer and first-deposit promotion require, including the P2026 code.Read sportsbook guide
Sportsbooks · DFS and pick’em appsChalkboard guideChalkboard app guide and welcome bonus details: how player picks work and what the 2026 Promo Pack includes.Read sportsbook guide
Sportsbooks · DFS and pick’em appsParlayPlay guideParlayPlay sign-up bonus and app guide: learn how player pick’em entries work and how its free-entry and deposit-match promotions differ.Read sportsbook guide
Sportsbooks · DFS and pick’em appsOwnersBox guideOwnersBox fantasy app guide: how its contests work and what the five OwnersBucks signup reward can be redeemed for.Read sportsbook guide
Sportsbooks · DFS and pick’em appsBoom Fantasy guideBoom Fantasy app and sign-up bonus guide: how Pick’em entries work and what its current offer of up to $40 in free entries includes.Read sportsbook guide
Sportsbooks · DFS and pick’em appsVivid Picks guideVivid Picks status and app guide: learn how its pick’em product operated and why there is no current sign-up bonus.Read sportsbook guide
Sportsbooks · Prediction marketsNovig guideNovig sports prediction market guide: how event contracts and trading credits work, and the current $25 credit offer after a $10 deposit.Read sportsbook guide
Sportsbooks · Prediction marketsProphetX guideProphetX sports exchange guide: how peer-to-peer trading works and how its $75 promo credit offer is released over 14 days.Read sportsbook guide
Sportsbooks · Prediction marketsSporttrade guideSporttrade status guide: how its sports contract exchange worked and why Sporttrade has no active sign-up bonus after wagering stopped.Read sportsbook guide
Sportsbooks · Prediction marketsBettorEdge guideBettorEdge app and signup bonus guide: how peer-to-peer sports markets work and what the random reward up to $100 means.Read sportsbook guide
Sportsbooks · Prediction marketsKalshi guideKalshi guide to event contracts, account funding, and personalized referral credits. Learn how Kalshi differs from a sportsbook.Read sportsbook guide
Sportsbooks · Prediction marketsPolymarket guidePolymarket guide to event contracts, the separate U.S. platform, and why there is no universal U.S. sign-up bonus verified.Read sportsbook guide
CalculatorsSports Betting Arbitrage & Hedge CalculatorSplit a bankroll across opposing prices and compare the return on each outcome.Open calculator
CalculatorsExpected Value (EV) Sports Betting CalculatorEstimate a bet’s expected profit from your stake, price, and win probability.Open calculator
CalculatorsFree Bet Conversion CalculatorEstimate the cash value of a stake-not-returned bonus bet using an opposing hedge.Open calculator
CalculatorsHalf-Point Betting CalculatorCompare a spread or total before and after buying a half point.Open calculator
CalculatorsSports Betting Hold CalculatorCalculate the estimated hold and no-vig probabilities from both sides of a market.Open calculator
CalculatorsSports Betting Implied Probability CalculatorConvert American odds into implied win probability and decimal odds.Open calculator
CalculatorsKelly Criterion Sports Betting CalculatorEstimate a bankroll fraction from your odds and your own win probability.Open calculator
CalculatorsNo-Vig Fair Odds CalculatorRemove the sportsbook margin from a two-way market to estimate fair odds.Open calculator
CalculatorsSports Betting Odds ConverterConvert American odds to decimal odds, fractional odds, and implied probability.Open calculator
CalculatorsSports Betting Parlay CalculatorCalculate combined parlay odds, potential payout, and break-even probability.Open calculator
CalculatorsPoint Spread Bet CalculatorSettle a point spread wager and calculate the profit or loss from the final score.Open calculator
CalculatorsPoisson Distribution Sports Betting CalculatorEstimate exact, over, and under probabilities from an average event count.Open calculator
CalculatorsRound Robin Betting CalculatorCount round robin combinations and estimate total cost and payout.Open calculator
CalculatorsSports Betting Vig CalculatorMeasure sportsbook juice from two prices and see the proportional no-vig odds.Open calculator
ToolsSports Betting Arbitrage ToolCheck two sportsbook prices for a covered, equal-return arbitrage.Open tool
ToolsSports Betting Odds Boost CalculatorCompare a boosted price with the original odds and estimate the change in expected value.Open tool
ToolsFree Bet Conversion ToolEstimate cash conversion from a bonus bet and an opposing cash hedge.Open tool
ToolsLow Hold Sports Betting ToolShop two books for the best price on each side and estimate the combined hold.Open tool
ToolsSports Betting Middle CalculatorCheck the overlap between an over and under, then see the middle range and ticket outcomes.Open tool
ToolsSports Betting Parlay BuilderBuild a parlay from individual prices and estimated probabilities, then review its payout and expected value.Open tool
ToolsPositive EV Betting ToolCompare a sportsbook price with your win probability to estimate expected value and edge.Open tool
API & docs · APISports betting data APISchedules, player research, model context and source receipts as JSON endpoints.Read the docs
API & docs · API guideAPI: AuthenticationHow requests are authorized, and which plan each route needs.Read the docs
API & docs · API guideAPI: Responses & errorsEvery response is JSON. Errors share one shape and a stable code where one applies.Read the docs
API & docs · API guideAPI: Rate limits & cachingLimits keep the shared sources healthy. Most routes are cached, so polling faster than the cache does not return newer data.Read the docs
API & docs · API endpointSport catalog (GET /api/sports/catalog)Games, available dates and supported markets for one sport and date.Read the docs
API & docs · API endpointResearch board (GET /api/sports/board)Player research for one game: recent history, availability, props and model context.Read the docs
API & docs · API endpointNFL board (GET /api/board)The weekly NFL research board for one market.Read the docs
API & docs · API endpointMLB board (GET /api/mlb/board)MLB games and player research for one date and market.Read the docs
API & docs · API endpointParlay lines (GET /api/trends/parlay)Every open player line on a slate, in every market, with each player's recent games.Read the docs
API & docs · API endpointLive game (GET /api/nfl/live)Live score, player projections and the game model for one game.Read the docs
API & docs · API endpointHealth check (GET /api/health)Is the API up, and when did it last sync?Read the docs
API & docs · DocsEV tools & API documentationThe EV workbench, its tools, the quote data contract and the EV API connection.Read the docs
Help · Help centerCreate and verify your PreciseEV accountRegister with your email, finish verification, and check that you are signed in to the right account.Read article
Help · Help centerFind the right workspaceKnow when to open Models, Trends, the market tools, or your Bet Tracker.Read article
Help · Help centerStart a player research sessionChoose a sport and market, inspect a player, and understand the context behind the numbers.Read article
Help · Help centerSave your work and move between devicesUnderstand account sync, pending changes, conflicts, and importing older browser records.Read article
Help · Help centerReport an issue and follow its statusSend a real support report with enough context for staff to investigate.Read article
Help · Help centerFilter player trends and choose a game sampleUse sample, venue, player, and price filters without losing track of what the result measures.Read article
Help · Help centerBuild and use a player watchlistSave players for later and understand why a saved player may not appear in the current view.Read article
Help · Help centerAdd and edit a ticket in Bet TrackerRecord the ticket you actually booked, including odds, stake, status, and optional notes.Read article
Help · Help centerImport a ticket from a screenshotTurn an image into a draft, correct the recognized text, and review every field before saving.Read article
Help · Help centerUpdate ticket results and check connected legsUse manual results or supported game data, and handle missing statistics, pushes, and voids.Read article
Help · Help centerRead tracker totals and export your ticketsUnderstand filters, open exposure, returned money, profit, and the scope of an export.Read article
Help · Help centerAdjust display settings and navigate on mobileChange card spacing and motion preferences, and find the full navigation on a smaller screen.Read article
Help · Help centerTroubleshoot missing, stale, or empty dataSeparate filter problems from unavailable sources and preserve saved work before retrying.Read article
Help · Help centerFind service notices and understand alert preferencesKnow which information appears in the app and which settings do not provide automatic delivery.Read article
Help · Help centerUse a calculator without changing your recordsEnter prices and assumptions, inspect a result, and keep calculations distinct from booked tickets.Read article
Help · Help centerRead model evidence and historical statisticsTell a projection, historical rate, market probability, and simulation interval apart.Read article
Help · Help centerChange your profile, email, or passwordUpdate account details using the appropriate verification and security steps.Read article
Help · Help centerSet up two-step verification and review sessionsAdd an authenticator, preserve recovery codes, and sign out devices you no longer use.Read article
Help · Help centerCheck your plan and manage billingFind your actual access, available checkout options, and the billing-management link.Read article
Help · Help centerRecover sign-in accessReset a forgotten password, request verification again, or use an unused recovery code.Read article
Help · Help centerExport your data or request account deletionDownload account records and understand the immediate effect of a deletion request.Read article
Help · Help centerCompare prices in Odds ScreenRead like-for-like markets across books and distinguish current prices from unavailable entries.Read article
Help · Help centerRead a positive EV comparisonUnderstand the offered price, reference estimate, and assumptions behind an EV result.Read article
Help · Help centerRead an arbitrage comparison and its calculatorInspect opposing prices, stake splits, and the assumptions that make the displayed calculation possible.Read article
Help · Help centerUnderstand manual prices and quote syncIdentify the source of a market record and know what a successful or failed sync changes.Read article
Help · Help centerFilter the market workspace and save a viewNarrow the displayed records, review pricing settings, and return to a saved configuration.Read article