How the model prices tennis
Tennis is the purest modeling sport: two players, no teammates, forty-plus weeks of matches a year. Oddify's tennis model builds on the strongest public foundation in the sport. Surface-specific player ratings in the Elo tradition. Refined with serve and return statistics, recent form, head-to-head history and tournament context. Every ATP and WTA match gets a win probability; every probability is set against the market's implied number, and the difference is the edge the board shows.
Why surface changes everything
The same two players can be a 65/35 match on clay and a coin flip on grass. Surface interacts with game style. Serve-dominant players gain on fast courts, grinders gain on slow ones. Which is why a single overall rating misleads and the model maintains separate surface-adjusted ones. Tournament transitions are where this bites hardest: the first weeks after the tours switch surfaces are historically where market prices lag player-surface reality the most, and where the model's edges cluster.
Set totals: tennis's quiet value market
Match winners get the attention; set and game totals hide the value. The model's probability structure prices them naturally. A 55/45 match between two big servers points toward more sets and tiebreaks, a 75/25 mismatch toward a short match. And Oddify's tracked results have consistently found the under/over set markets less efficiently priced than match winners. The full board in the app carries totals context alongside every match probability.
Using the tournament board
The board shows both players, the model's favorite and its probability, with the tournament noted per match. Tennis discipline: respect retirement and fatigue risk in the confidence rating (back-to-back three-setters are real), weight surface-adjusted numbers over career head-to-heads, and treat early-round blowout prices skeptically. The vig eats heavy favorites. Deeper player stats live in the app's tennis section alongside every match.
Related: the AI sports picks hub covers every other sport Oddify prices.
Frequently asked questions
Are AI tennis predictions accurate?
Tennis models are among the best-calibrated in sports because the data is so clean. Two players, huge match samples, no teammates. Oddify's standard is the same as everywhere: 60% favorites should win about 60% over large samples, tracked continuously across tours.
Does the model cover both ATP and WTA?
Yes. Both tours, with separate surface-adjusted ratings per player. Predictions publish as draws release and refresh through each tournament.
How much does surface matter?
Enough to flip matches: the same pairing can be lopsided on clay and even on grass. The model maintains surface-specific ratings, and its largest edges historically cluster in the weeks after the tours change surfaces, when market prices lag.
Does the model predict set totals?
Yes. Set and game totals fall out of the same probability structure that prices match winners, and totals markets are typically priced less efficiently than the headline match odds.
Are the predictions free?
The sample board is free and a free account unlocks daily free predictions; full tournament coverage is part of the paid tiers. Oddify is not a sportsbook and does not accept wagers.
Every draw, every surface, priced
Surface-adjusted win probabilities and set-total edges across the ATP and WTA tours. Free to start.
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