Match Info

WTA - SINGLES: US Open - Qualification, hard - Quarter-finals

Date: 18 August 2025, Monday 🏁 Finished

Location: USTA Billie Jean King NTC (New York, NY) 🌤️ ... 🔵 Hard

Where to Watch on TV:

Country	Kick-Off	TV Channels
Denmark	19:15	Eurosport 1
United Kingdom	18:15	Sky Sports+


	Katie Volynets		Sofia Costoulas

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Katie Volynets
69.9%

Sofia Costoulas
30.1%

Initial Probability (when we started the analysis)

68.8%

31.2%

Our Initial ML Estimation

68.1%

31.9%

Analysis of Changes in Winning Probabilities:

Katie Volynets has improved its chances compared to the initial analysis. (+1.1%)

Sofia Costoulas has seen a decrease in its chances compared to the initial analysis. (-1.1%)

ML Model estimates a lower probability for Katie Volynets than the current prediction. (-1.8%)

ML Model estimates a higher probability for Sofia Costoulas than the current prediction. (+1.8%)

Expected Score (Market Odds): 2:0

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Volynets is ranked WTA: 108. Costoulas is ranked WTA: 183.

Both players are showing inconsistent performances lately.

Costoulas may have a physical advantage due to more rest days in recent times.

In this match, Volynets is seen as the favorite.

The players have not played against each other recently.

✺ - easy match; ✺ - difficult match;

- Katie Volynets
WTA Cincinnati
08.08.25	Varvara Gracheva - Katie Volynets	2:1 ✺
WTA Montreal
27.07.25	Katie Volynets - Aoi Ito	1:2 ✺
26.07.25	Katie Volynets - Jodie Anna Burrage	2:1 ✺
WTA Wimbledon
03.07.25	Katie Volynets - Elisabaetta Cocciaretto	0:2 ✺
01.07.25	Katie Volynets - Tatjana Maria	2:1 ✺
Form Coefficient (based on results and difficulties of last matches) - 8 LLWLW
- Sofia Costoulas
ATP Challenger
30.07.25	Sofia Costoulas - Viktorija Golubic	1:2 ✺
29.07.25	Sofia Costoulas - Martyna Kubka	2:1 ✺
ITF Tournaments
25.07.25	Sofia Costoulas - Eva Vedder	0:2 ✺
24.07.25	Sofia Costoulas - Isabella Shinikova	2:0 ✺
23.07.25	Sofia Costoulas - Justina Mikulskyte	2:0 ✺
Form Coefficient (based on results and difficulties of last matches) - 5.5 LWLWW

Katie Volynets - Sofia Costoulas