MODEL PREDICTION · 2026-08-21
HARD

C. Gauff vs M. Kostyukprediction

✓ Correct
GAUFFWIN PROBABILITYKOSTYUK
60%
model prob.
@1.74
odds · 57% impl.
H2H 3–2 GauffHard 72%🎾Serve 62%📈Form 7/10 · 3✓
CONDITIONS OF THE MATCHin the modelcontext
Surface
Hard

Consistent bounce, medium-fast: neutral conditions, no style favored.

Temperature
30°C

Strong heat: warm air speeds the ball up and physical wear tells in long matches.

Humidity
53%

Dry air: the ball travels normally.

Wind
3 km/h

Light wind: no noticeable effect.

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: #4 vs #11 (better ranked)

Head-to-head: 3-2 in favor

Solid on Hard: 71% career on the surface

Recent form: 7/10 in recent matches

On a streak: 3 wins in a row

Match-sharp: 6 matches in the last 2 weeks

Calibrated model probability (~64% out-of-sample accuracy, validated specifically on WTA). Not a guarantee: the model ≈ the market on average, so the odds already capture almost all the edge. 18+ · gamble responsibly.
@1.66
fair odds
+4.8%
expected value
BREAKDOWN · MODEL ANALYSIS

The model makes C. Gauff the favorite with a 60% win probability, against M. Kostyuk's 40% — a solid favorite, though Kostyuk keeps real chances. Converted to odds, that probability is worth about @1.66; the offered odds are around @1.74 (a 57% implied), slightly above the market, so the model is a touch more optimistic.

Several factors explain the number: #4 vs #11 (better ranked); 3-2 in favor; 71% career on the surface; 7/10 in recent matches.

Read it with perspective. Our probability is calibrated — when the model says 60%, that outcome happens roughly that percentage of the time, with ~64% out-of-sample accuracy — but being the favorite is not being the winner: roughly 40 out of every 100 times Kostyuk wins. The model also tends to agree with the market, so the odds already capture almost all the edge: don't take it as a sure value. This is informational analysis, not a betting recommendation. 18+ · play responsibly.

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