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MODEL PREDICTION · 2026-07-13

A. Parks vs V. Grammatikopoulou — prediction

Athens (Greece) - Qualification
PARKSWIN PROBABILITYGRAMMATIKOPOULOU
76%
model prob.
@1.09
odds · 92% impl.
🎾Serve 56%📈Form 3/10
THE MODEL'S REASONING

Ranking: #81 vs #170 (better ranked)

Recent form: 5/10 in recent matches

Model 76% vs market 92% → 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.
@1.31
fair odds
−16.9%
expected value
HOW EACH FACTOR MATTERS
Level (Ranking)▸ Parks●●●
Parks (#81) holds a large ranking gap over Grammatikopoulou (#170), the model's strongest structural edge in this match.
Serve/return▸ Parks●●
Parks wins 56% of her service points, a solid base for holding serve, but her 40% return rate limits break opportunities.
Form▸ Grammatikopoulou●●
Parks is 5-5 in her last 10 with a current 1-match losing streak and no quality wins, softer form than her ranking implies.
Rest▸ Parks
12 days since her last match and only 2 in the last 14 days give Parks fresh legs entering this qualifier.
Odds/Value▸ Grammatikopoulou●●●
Model gives Parks 76% vs the market's 92% implied probability, yielding a -16.9% expected value at 1.09 odds.
RANKING GAP

The clearest structural advantage for Parks is the ranking differential: #81 against an unranked-in-data opponent cited at #170 in the model's factor list. In WTA qualifying rounds, a gap of this size normally translates into a meaningful edge in overall match quality, and it is the main pillar supporting her 76% model probability.

Still, ranking alone does not fully capture current form, and the model tempers this advantage rather than treating it as decisive — it lands well short of the market's near-certain pricing.

FORM AND SERVE PROFILE

Parks' recent results are mixed: 5 wins and 5 losses in her last 10 matches, with a current 1-match losing streak and no listed quality wins. This is not the profile of an in-form heavy favorite, and it tempers the strength of her ranking edge.

On serve, her 56% service-points-won rate is a reasonable foundation for holding her own delivery, but a 40% return rate suggests she does not consistently generate pressure on the opponent's serve — a relevant limitation if Grammatikopoulou can hold at a similar clip.

REST SITUATION

Parks has had 12 days since her last match and only 2 matches in the past two weeks, indicating she is fresh and not carrying fatigue into this qualifying match. This is a minor positive but not a major swing factor given the lack of comparable data for her opponent.

VALUE CHECK

This is the key point for anyone considering the odds: the model assigns Parks a 76% chance of winning, while the market's price of 1.09 implies roughly 92%. That gap produces a -16.9% expected value, meaning backing Parks at this price is unfavorable on the model's own numbers even though she is clearly the favorite.

Being favored and offering value are two different things. Here, the model agrees Parks should win more often than not, but it does not see enough edge to justify the market's near-certainty — there is no indication of profitable value at these odds.

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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