JATSport
JATSport
JATSport scans live odds across every major sportsbook, strips out the vig, and surfaces the bets where the math is in your favor before the lines move.
We pull real-time lines from multiple sportsbooks and display them side-by-side so you always know where the best price is.
We strip the bookmaker's margin from the odds to reveal the true implied probability, the number the house doesn't want you to see.
By comparing your estimated probability to the devigged market, JATSport highlights where you have a positive expected value advantage.
Enter your bankroll and let the Kelly formula calculate the mathematically optimal stake for each bet to maximize long-run growth.
Odds refresh automatically on a smart schedule, faster when lines are moving and slower when markets are stable, to preserve your API usage.
Quickly surface only the bets with positive edge, or filter by market type to focus on the outcomes most relevant to your strategy.
We pull lines from major sportsbooks in real time via The Odds API, covering moneylines, spreads, and totals.
The bookmaker margin is stripped using the multiplicative devig method to expose the true market probability for each outcome.
Your assessed probability is compared to the market's implied probability. A positive gap means a potential edge worth betting.
The Kelly Criterion converts your edge into an optimal bet size relative to your bankroll. No guesswork, no gut feelings.
Player proposition bets let you wager on individual player performance rather than the game outcome. Think things like whether a pitcher will strikeout 7+ batters, or whether a quarterback will throw for 300+ passing yards. They often offer more value than traditional markets because sportsbooks set lines with less precision.
Pitcher: Strikeouts, outs recorded, hits allowed, earned runs.
Batter: Home runs, hits, RBIs, stolen bases, total bases. Lines like "Shohei Ohtani over 1.5 hits" are common and frequently mispriced.
QB: Passing yards, TDs, interceptions, completions.
RB/WR/TE: Rushing yards, receiving yards, receptions, anytime TD scorer. Receiving props on target-heavy receivers in favorable matchups often carry positive EV.
Goalscorer: Anytime, first, or last goalscorer markets.
Cards & assists: Player to be carded, player to record an assist. Forwards in open matchups and set-piece takers are prime targets for goalscorer value.
Props have softer lines than game markets. Books devote less resource to setting them. Compare the devigged consensus across books, consider recent form and matchup context, and size bets conservatively. Small edges compound fast in props.
Props have lower bet limits and are more likely to be limited by books if you win consistently. Always confirm lineup status before betting player props. A scratch means a lost bet and most books void on non-starters.
SGPs combine player props and game outcomes from a single match into one bet. They offer big payouts but the outcomes are correlated, which books exploit. Stick to 2–3 legs max and avoid stacking correlated results.
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Email JATSport SupportJATSport provides analytical tools and information for educational and entertainment purposes only. No bet is guaranteed to win. Sports betting involves real financial risk, and past performance of any model or system does not guarantee future results. JATSport is not a licensed financial advisor or gambling operator. We are not liable for any losses incurred as a result of bets placed using information or analysis from this site. Always gamble responsibly and within your means. If you or someone you know has a gambling problem, contact the National Problem Gambling Helpline at 1-800-522-4700.