MODEL PREDICTION · 2026-08-13
HARD

C. Gauff vs E. Rybakinaprediction

Toronto
GAUFFWIN PROBABILITYRYBAKINA
51%
model prob.
@1.78
odds · 56% impl.
H2H 1–0 GauffRest 4d vs 2dHard 72%🎾Serve 62%📈Form 8/10 · 6✓
CONDITIONS OF THE MATCHin the modelcontext
Surface
Hard

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

Temperature
27°C

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

Humidity
43%

Dry air: the ball travels normally.

Wind
14 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 #2

Head-to-head: 1-0 in favor

Solid on Hard: 71% career on the surface

Recent form: 8/10 in recent matches

On a streak: 6 wins in a row

Match-sharp: 6 matches in the last 2 weeks

WATCH FOR

!The opponent is ranked higher (#2)

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.
@1.94
fair odds
−8.4%
expected value
BREAKDOWN · MODEL ANALYSIS

The model makes C. Gauff the favorite with a 51% win probability, against E. Rybakina's 49% — a tight match, without a wide margin. Converted to odds, that probability is worth about @1.94; the offered odds are around @1.78 (a 56% implied), slightly below the market, so the model is a touch more cautious.

Several factors explain the number: #4 vs #2; 1-0 in favor; 71% career on the surface; 8/10 in recent matches.

Read it with perspective. Our probability is calibrated — when the model says 51%, 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 49 out of every 100 times Rybakina 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. Watch out for: The opponent is ranked higher (#2). This is informational analysis, not a betting recommendation. 18+ · play responsibly.

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