MODEL PREDICTION · 2026-07-14
CLAY

Y. Hanfmann vs P. Martinezprediction

Gstaad
HANFMANNWIN PROBABILITYMARTINEZ
64%
model prob.
@1.32
odds · 76% impl.
H2H 2–1 HanfmannRest 12d vs 6d🎾Serve 64%📈Form 4/10
CONDITIONS OF THE MATCHin the modelcontext
Surface
Clay

Slow court, high bounce: longer points, rewards whoever holds up from the baseline.

Temperature
29°C

Warm: the ball flies a little more and fitness counts.

Humidity
32%

Very dry air: the ball travels faster.

Wind
15 km/h

Light wind: no noticeable effect.

Altitude
1050 m

High altitude: thin air, faster ball and longer bounce.

Surface feeds the model (surface specialization is one of its factors). Weather and altitude are context we publish for you — they do NOT move the probability.

OUR MODEL'S REASONING

Ranking: #56 vs #125 (better ranked)

Recent form: 4/10 in recent matches

Head-to-head: 2-1 in favor

Model 64% vs market 76% → 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.
@1.57
fair odds
−16.0%
expected value
HOW EACH FACTOR MATTERS
Level (Elo/ranking)▸ Hanfmann●●●
Hanfmann's 1918 Elo is 198 points above Martinez's 1720, and his No. 56 ranking outranks Martinez's No. 125 by a wide margin.
Serve/return▸ Hanfmann●●●
Hanfmann wins 71% of serve points vs Martinez's 61%; his 49% baseline rate also tops Martinez's 31%, showing broader point-winning control.
Altitude▸ Hanfmann●●
At 1050m the thinner air speeds up the ball, rewarding the better server: Hanfmann's 71% serve-points-won vs Martinez's 61%.
Weather▸ Hanfmann
Warm, dry air (29°C, 33% humidity) quickens the ball, reinforcing the same serve-based edge favoring Hanfmann's stronger delivery.
Head-to-head▸ Hanfmann
Hanfmann leads 2-1, including wins in both of the last two meetings (2024, 2023), a modest psychological edge.
Form= Even
Both arrive at 4/10 in their last ten matches and on one-match losing streaks, so recent form does not separate them.
Rest▸ Hanfmann
Hanfmann has had 12 days since his last match vs Martinez's 6, giving him more recovery time heading into this contest.
LEVEL GAP

Hanfmann's Elo rating of 1918 sits 198 points above Martinez's 1720, a gap that alone accounts for much of the model's lean toward him. The ranking picture reinforces this: No. 56 versus No. 125 is a substantial difference in overall tour results, and the model's 64% favorite probability reflects that quality gap rather than any single recent result.

SERVE-DRIVEN MATCH

Hanfmann wins 71% of his service points compared to Martinez's 61%, a 10-point edge that should let him hold serve more cheaply throughout the match. Martinez, however, is the better returner in this pairing — his 41% return-points-won rate outstrips Hanfmann's 32% — meaning he should generate more break-point opportunities than Hanfmann can produce in reply.

Even so, Hanfmann's overall baseline win rate of 49% comfortably exceeds Martinez's 31%, suggesting his serve advantage converts into more total points won across the match, even if Martinez occasionally finds break chances.

CONDITIONS AT ALTITUDE

Playing at 1050m in 29°C heat and just 33% humidity produces thin, dry air that speeds up the ball and shortens points — conditions that generally favor the better server. That mechanism plays to Hanfmann's strength, since his 71% serve-points-won rate is well above Martinez's 61% in the same metric.

The 14 km/h wind adds some unpredictability to ball flight but isn't strong enough to meaningfully offset the serve-friendly effect of the altitude and heat.

FORM, H2H AND REST

Recent form is essentially a wash: both players sit at 4/10 over their last ten matches and are on one-match losing streaks, so neither side carries clear momentum into Gstaad. The head-to-head record slightly favors Hanfmann at 2-1, including victories in both of the last two meetings (2024 and 2023).

Rest also tilts toward Hanfmann, who has had 12 days since his last match compared to Martinez's 6, potentially giving him a freshness edge if the contest stretches into a decisive set.

VALUE CHECK

The model gives Hanfmann a 64% chance of winning, but the market prices him at an implied 76% (odds of 1.32). That 12-point gap produces a -16% expected value on the favorite, meaning the current price does not compensate for the model's assessed risk.

Hanfmann being the more probable winner does not make him a good bet at this price. The data supports him as the favorite on merit — Elo, serve numbers, and conditions — but the market is asking for more confidence than the model's numbers justify, so this is a case for caution rather than backing the favorite outright.

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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