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MODEL PREDICTION · 2026-07-13

Y. Hanfmann vs P. Martinez — prediction

HANFMANNWIN PROBABILITYMARTINEZ
64%
model prob.
@1.30
odds · 77% impl.
H2H 2–1 Hanfmann🌡29° · 41% hum1050 m altitudeRest 11d vs 5d🎾Serve 71%
THE MODEL'S REASONING

Ranking: #56 vs #125 (better ranked)

Recent form: 4/10 in recent matches

Head-to-head: 1-0 in favor

Model 64% vs market 77% → the model sees it as less likely than the odds

Calibrated model probability (~65% out-of-sample accuracy). Not a guarantee: the model ≈ the market on average, so the odds already capture almost all the edge. 18+ · gamble responsibly.
@1.56
fair odds
−16.8%
expected value
HOW EACH FACTOR MATTERS
Level (Elo/Ranking)▸ Hanfmann●●●
Elo gap of 198 points (1918 vs 1720) and ranking #56 vs #125 give Hanfmann a clear class advantage.
Serve/Return▸ Hanfmann●●
Hanfmann's 71% service points won beats Martinez's 41% return win rate by 30 points, tilting the baseline exchange his way.
Conditions (Altitude & Weather)▸ Hanfmann●●
1050m altitude plus hot, dry air (30°C, 34% humidity) speed up the ball, rewarding the stronger server, Hanfmann at 71% vs Martinez's 61%.
Head-to-head▸ Hanfmann
Hanfmann leads the series 2-1, including the most recent 2024 meeting, a modest historical edge.
Form▸ Hanfmann
Both are 4-6 in their last 10, but Hanfmann's wins over Fonseca (1993 Elo) and Vallejo (1905) outrank Martinez's single win over Fery (1952).
Rest▸ Hanfmann
Hanfmann has 11 days since his last match versus Martinez's 5, though both played twice in the last 14 days.
Market Value= Even●●●
Model gives a 50-50 match while odds imply 77% for Hanfmann (1.30), producing a -35% EV — no value on the favorite.
CLASS GAP

The most tangible edge here is pedigree: Hanfmann's Elo of 1918 sits 198 points above Martinez's 1720, and the ranking gap (#56 vs #125) tells the same story. On serve, Hanfmann's 71% service points won comfortably outpaces Martinez's 41% return win rate, a 30-point gap that should let him hold more freely than his opponent breaks.

Martinez is not overmatched on his own serve (61%) against Hanfmann's 32% return rate, but the numbers still lean toward Hanfmann controlling more service games over the course of the match.

CONDITIONS FAVOR THE SERVER

Gstaad's 1050m altitude thins the air and speeds up the ball, a dynamic that generally rewards the stronger server rather than the better returner. Combined with the hot, dry forecast (30°C, 34% humidity, 'calor fuerte, muy seco'), points should move faster and rallies shorten — conditions that play to Hanfmann's 71% service win rate more than to Martinez's return game.

Neither player's surface-specific numbers are available, so this read rests purely on the interaction between environment and the serve/return split already noted.

HISTORY, FORM AND SCHEDULE

The head-to-head is light (three meetings) but favors Hanfmann 2-1, with the most recent decision in 2024. Recent form is close on paper — both are 4-6 in their last 10 matches — but Hanfmann's quality wins (over Fonseca at 1993 Elo and Vallejo at 1905) carry more weight than Martinez's single notable win over Fery (1952).

Rest slightly favors Hanfmann too: 11 days since his last match compared to Martinez's 5, though both have played twice in the past two weeks, so fatigue is not a major differentiator.

VALUE CHECK

Every factor above points modestly toward Hanfmann, and the model's own probability output is a flat 50%. That is well below the market's implied 77% (odds of 1.30), producing a projected expected value of -35% on the favorite.

This is a case where being the favorite does not equal being a value bet. The model sees the match as a genuine coin flip, not the near-certainty the price suggests, so backing Hanfmann at these odds is not supported by the data — and betting Martinez outright ignores his clear disadvantages in level and conditions. The honest read is: real edge unclear, market is overpricing the favorite.

Impact and analysis from real match data (Elo, form, head-to-head, rest, surface vs baseline, weather, altitude). The model ≈ the market on average; the odds already capture almost all the edge. 18+ · gamble responsibly.

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