MODEL PREDICTION · 2026-09-30
● HARD

K. Birrell vs A. Ito — prediction

Beijing
✓ Correct
BIRRELLWIN PROBABILITYITO
68%
model prob.
@1.28
odds · 78% impl.
⚔H2H 1–0 Birrell⏱Rest 3d vs 10d◐Hard 48%🎾Serve 56%📈Form 6/10 · 5✓
CONDITIONS OF THE MATCH◆ in the model◇ context
Surface◆
Hard

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

Temperature◇
19°C

Mild: neutral conditions.

Humidity◇
11%

Very dry air: the ball travels faster.

Wind◇
17 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: #41 vs #361 (better ranked)

›Head-to-head: 1-0 in favor

›Model 68% vs market 78% → the model sees it as less likely than the odds

›Recent form: 6/10 in recent matches

›On a streak: 5 wins in a row

›Match-sharp: 5 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.
@1.47
fair odds
−13.0%
expected value
BREAKDOWN · MODEL ANALYSIS

The model makes K. Birrell the favorite with a 68% win probability, against A. Ito's 32% — a solid favorite, though Ito keeps real chances. Converted to odds, that probability is worth about @1.47; the offered odds are around @1.28 (a 78% implied), slightly below the market, so the model is a touch more cautious.

Several factors explain the number: #41 vs #361 (better ranked); 1-0 in favor; model 68% vs market 78% → the model sees it as less likely than the odds; 6/10 in recent matches.

Read it with perspective. Our probability is calibrated — when the model says 68%, 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 32 out of every 100 times Ito 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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