MODEL PREDICTION · 2026-08-18
HARD

M. Andreeva vs J. Tjenprediction

ANDREEVAWIN PROBABILITYTJEN
78%
model prob.
@1.15
odds · 87% impl.
Hard 71%🎾Serve 59%📈Form 6/10
CONDITIONS OF THE MATCHin the modelcontext
Surface
Hard

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

Temperature
28°C

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

Humidity
43%

Dry air: the ball travels normally.

Wind
9 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: #6 vs #37 (better ranked)

Recent form: 7/10 in recent matches

Solid on Hard: 67% career on the surface

Model 78% vs market 87% → the model sees it as less likely than the odds

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.
@1.29
fair odds
−10.7%
expected value
BREAKDOWN · MODEL ANALYSIS

The model makes M. Andreeva the favorite with a 78% win probability, against J. Tjen's 22% — a conviction read: the model sees the match clearly leaning one way. Converted to odds, that probability is worth about @1.29; the offered odds are around @1.15 (a 87% implied), slightly below the market, so the model is a touch more cautious.

Several factors explain the number: #6 vs #37 (better ranked); 7/10 in recent matches; 67% career on the surface; model 78% vs market 87% → the model sees it as less likely than the odds.

Read it with perspective. Our probability is calibrated — when the model says 78%, 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 22 out of every 100 times Tjen 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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