Win probability

Sunday, 26 July 2026

15 matches selected · 15 tournaments · model last ran 17:50 UTC

Umpiry rates 15 matches on Sunday, 26 July 2026. The closest is Patrick Zahraj v Raphael Perot at 52 % — the model’s most uncertain call of the day. Probabilities come from a per-tour model trained on Elo, surface Elo, recent serve and return form and layoff.

Rated matches · ordered closest first
TimeTournamentRoundMatchProbabilityVerdictH2H
11:10M25 Metzingen
ITF · clay
FZahraj P.Perot R.52 %48 %Toss-up1–1
07:30W15 Kursumlijska Banja 10
ITF · clay
FGeerlings A.Radovanovic N.52 %48 %Toss-up1–0
16:00M25 Denia
ITF · clay
FRodenas P.Lagutin P.54 %46 %Toss-up1–1
18:40Palermo
CHALLENGER · clay
FFerro F.Jones F.55 %45 %Toss-up0–1
12:10Hamburg
WTA · clay
FBondar A.Korpatsch T.56 %44 %Toss-up0–5
16:10Segovia
CHALLENGER · hard
FPavlovic L.Martineau M.56 %44 %Toss-up1–0
17:05Winnipeg
CHALLENGER · hard
FSamuel T.Draxl L.57 %43 %Toss-up1–0
12:10Livesport Prague Open
WTA · hard
FSnigur D.Tagger L.58 %42 %Slight edge0–1
15:20W100 Evansville
ITF · hard
FDolehide C.Woo Ku Y.58 %42 %Slight edge1–0
16:00W15 Huamantla 2
ITF · hard
FBuchnik M.Liu K.59 %41 %Slight edge1–1
16:00M15 Huamantla 3
ITF · hard
FThomson M.Nicholas Tudorica A.60 %40 %Slight edge1–0
09:00W35 Gentofte
ITF · clay
FBajraliu L.Cortez Llorca L.63 %37 %Slight edge0–1
07:30M15 Kursumlijska Banja 10
ITF · clay
FDjuric B.Vives Marcos P.66 %34 %Slight edge0–1
06:30M15 Bali
ITF · hard
FBoosarawongse T.Matsuda R.66 %34 %Slight edge1–0
16:50Estoril
ATP · clay
FBlockx A.Van Assche L.69 %31 %Clear favourite0–2

How to read this

Each row gives the model’s probability that the favourite wins, and the verdict says the same thing in words. Rows are ordered by how close the model thinks the match is, so the top of the table is where it is least sure. A 70 % favourite losing is not a broken model — it is the 30 %. Probabilities are not odds and take no account of any market.

How often the model has been right

Umpiry win-probability model accuracy by tour family, measured on the predictions the model made
TourCorrect
ATP / WTA66 %
Challenger (men)64 %
Challenger (women)68 %
ITF (men)66 %
ITF (women)64 %

Measured on the predictions the model actually made, not on a backtest — see Methodology.

Yesterday

Saturday, 25 July 2026 · 20 matches

Favourites won

9 / 20

Model expected

11.2

The model expected 11.2 favourites to win; 9 did. See yesterday’s page.

Biggest shock, last 7 days

24 Jul
W15 Kursumlijska Banja 10
ITF · clay
QF

Surprise score

86

Questions

How is the probability calculated?
A separate model for each tour, trained on Elo, surface-specific Elo, recent serve and return form and time since the player’s last match. It runs several times a day; the time of the last run is at the top of this page.
How often is the model right?
We publish it. The table above gives the hit rate for each tour family, measured on the predictions the model actually made — see Methodology for how it is computed.
Why are the closest matches at the top?
Rows are ordered by distance from 50 %, so the table opens where the model is least sure. “Most one-sided” reverses the order and groups the rows by tournament.
Is this a betting tip?
No. The page shows a model’s probability and how often that model has been right. There are no odds, no comparison with a market and no suggested stake.