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MODEL PREDICTION · 2026-08-08
HARD

I. Swiatek vs M. Kostyukprediction

Toronto
✓ Correct
SWIATEKWIN PROBABILITYKOSTYUK
58%
model prob.
@1.70
odds · 59% impl.
H2H 3–1 SwiatekHard 75%🎾Serve 61%📈Form 7/10 · 2✓
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
74%

Humid air: the ball loses some speed.

Wind
19 km/h

Some wind: makes baseline control harder.

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: #3 vs #13 (better ranked)

Recent form: 6/10 in recent matches

Head-to-head: 3-1 in favor

Solid on Hard: 78% career on the surface

More rested: 35d vs opponent's 30d

WATCH FOR

!Returning from a long layoff (35d) — possible rustiness

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.
@1.72
fair odds
−1.0%
expected value
BREAKDOWN · MODEL ANALYSIS

The model makes I. Swiatek the favorite with a 58% win probability, against M. Kostyuk's 42% — a tight match, without a wide margin. Converted to odds, that probability is worth about @1.72; the offered odds are around @1.70 (a 59% implied), virtually the same as what the market prices in.

Several factors explain the number: #3 vs #13 (better ranked); 6/10 in recent matches; 3-1 in favor; 78% career on the surface.

Read it with perspective. Our probability is calibrated — when the model says 58%, 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 42 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. Watch out for: Returning from a long layoff (35d) — possible rustiness. This is informational analysis, not a betting recommendation. 18+ · play responsibly.

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