MODEL PREDICTION · 2026-07-28
HARD

A. Potapova vs V. Williamsprediction

Washington
POTAPOVAWIN PROBABILITYWILLIAMS
87%
model prob.
@1.15
odds · 87% impl.
🎾Serve 56%
CONDITIONS OF THE MATCHin the modelcontext
Surface
Hard

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

Surface feeds the model — surface specialization is one of its factors.

OUR MODEL'S REASONING

Ranking: #28 vs #471 (better ranked)

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.
@1.15
fair odds
+0.4%
expected value
HOW EACH FACTOR MATTERS
Level (Elo/ranking)▸ Potapova●●●
Potapova ranks #28 vs Williams' #471; baseline win rate is 61% vs 8%, showing a wide quality gap.
Form▸ Potapova●●
Potapova won 7 of her last 10 matches, a solid recent form signal; no comparable number exists for Williams.
Serve/return▸ Potapova●●
Potapova wins 56% of service points and 36% of return points, strong all-around numbers with no Williams data to compare.
Rest▸ Williams
Potapova returns from a 29-day layoff, a flagged risk of rustiness that could blunt her otherwise strong profile.
RANKING DOMINANCE

Potapova (#28) sits far above Williams (#471) in the rankings, a gap the model reflects directly: Potapova's baseline win rate is 61% compared with just 8% for Williams.

This baseline advantage, before any other adjustment, already signals a lopsided match on paper and forms the backbone of the model's 87% probability for Potapova.

SERVE AND FORM

Beyond the ranking gap, Potapova's own service and return numbers reinforce her edge: she wins 56% of service points and 36% of return points, both solid marks for a player at her level.

Her recent form, 7 wins in her last 10 matches, adds a short-term boost, though no equivalent numbers exist for Williams to allow a direct comparison.

LAYOFF RISK

The one caution here is Potapova's return from a 29-day layoff, flagged as a risk of possible rustiness. Layoffs of this length can affect timing and rhythm, especially early in a match.

The data gives no indication of how significant this effect might be for Potapova specifically, so it should be read as a mild caveat rather than a quantified drag on her chances.

VALUE READ

The model's 87% probability for Potapova matches the market-implied probability from the 1.15 odds, also 87%. That leaves an expected value of just 0.4%, essentially negligible.

This is a case where the favorite is heavily backed by the data, but the market has already priced in her ranking, baseline, and form advantages — backing her at these odds offers no meaningful edge over the market's own assessment.

Impact and analysis from real match data (Elo, form, head-to-head, rest, surface vs baseline, weather, altitude). The model ≈ the market on average; the odds already capture almost all the edge. 18+ · gamble responsibly.

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