Katie Volynets vs Sofia Costoulas: Where to Watch, Predictions, Stats

Bet nowGamble Responsibly 18+
Tennis WTA US Open Katie Volynets - Sofia Costoulas
Result
2:0
18/08/2025 at 13:15 (Time Zone – GMT-4 (America/New_York))
  • WTA - SINGLES: US Open - Qualification, hard - Quarter-finals
Katie Volynets - Sofia Costoulas - Gamble Responsibly 18+
00:00 / 90:00
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Match Stats

Aces
05
Double Faults
14
1st Serve Percentage
78%54%
1st Serve Points Won
50% (21/42)47% (23/49)
2nd Serve Points Won
75% (9/12)50% (21/42)
Break Points Saved
60% (6/10)59% (10/17)
Average 1st Serve Speed
126 km/h154 km/h
Average 2nd Serve Speed
106 km/h123 km/h
1st Return Points Won
55% (27/49)50% (21/42)
2nd Return Points Won
50% (21/42)25% (3/12)
Break Points Converted
41% (7/17)40% (4/10)
Winners
2024
Unforced Errors
3251
Net Points Won
69% (11/16)46% (11/24)
Service Points Won
54% (29/54)47% (43/92)
Return Points Won
53% (49/92)46% (25/54)
Total Points Won
53% (78/146)47% (68/146)
Last 10 Balls
64
Match Points Saved
07
Service Games Won
56% (5/9)30% (3/10)
Return Games Won
70% (7/10)44% (4/9)
Total Games Won
63% (12/19)37% (7/19)

Chances of winning


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%)
  • Katie Volynets - Sofia Costoulas Odds

    1 X 2 Marga
    Avarage Now
    (Initially)
    1.35
    (1.37)

    3.14
    (3.01)
    6.2%
    (6.5%)
    Preview Facts
    • 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.
    Latest results of Katie Volynets
    Latest results of Sofia Costoulas
    Draw
    Singles - Main

    1/64-finals
    1Sabalenka A. (1)Masarova R.2 : 0
    2Parrizas-Diaz N. (RET.)Kudermetova P.0 : 0
    3Jacquemot E.Bouzkova M.2 : 0
    4Marino R. (Q)Fernandez L. (31)0 : 2
    5Mertens E. (19)Ahn A. (WC)2 : 0
    6Sun L.Osorio C.2 : 1
    7Bucsa C.Liu C. (Q)2 : 0
    8Eala A.Tauson C. (14)2 : 1
    9Rybakina E. (9)Pareja J. (WC)2 : 0
    10Bronzetti L.Valentova T. (Q)1 : 2
    11Raducanu E.Shibahara E. (Q)2 : 0
    12Tjen J. (Q)Kudermetova V. (24)2 : 1
    13Kessler M. (32)Linette M.2 : 0
    14Selekhmeteva O. (Q)Vondrousova M.0 : 2
    15Sasnovich A.Jovic I.0 : 2
    16Aiava D. (Q)Paolini J. (7)0 : 2
    17Pegula J. (4)Sherif M.2 : 0
    18Starodubtseva Y.Blinkova A.0 : 2
    19Azarenka V.Inoue H. (Q)2 : 0
    20Pavlyuchenkova A.Yastremska D. (30)2 : 1
    21Samsonova L. (17)Yuan Y.2 : 1
    22Jeanjean L.Hon P. (Q)0 : 2
    23Li A.Sramkova R.2 : 1
    24Zhang S. (Q)Bencic B. (16)0 : 2
    25Navarro E. (10)Wang Y.2 : 0
    26Teichmann J.McNally C. (WC)0 : 2
    27Uchijima M.Danilovic O.2 : 1
    28Krejcikova B.Mboko V. (22)2 : 0
    29Ostapenko J. (25)Wang Xiy. (Q)2 : 0
    30Townsend T.Ruzic A.2 : 0
    31Potapova A.Zhu L.2 : 1
    32Parks A.Andreeva M. (5)0 : 2
    33Keys M. (6)Zarazua R.1 : 2
    34Kvitova P.Parry D.0 : 2
    35Volynets K. (Q)Sonmez Z.0 : 2
    36Boulter K.Kostyuk M. (27)0 : 2
    37Noskova L. (21)Galfi D. (Q)2 : 0
    38Jones F. (Q)Lys E.0 : 2
    39Cirstea S.Sierra S.2 : 0
    40Williams V. (WC)Muchova K. (11)1 : 2
    41Kasatkina D. (15)Ruse G.2 : 0
    42Rakhimova K.Garcia C. (WC)2 : 1
    43Baptiste H.Siniakova K.2 : 0
    44Minnen G.Osaka N. (23)0 : 2
    45Frech M. (28)Gibson T. (WC)2 : 0
    46Semenistaja D. (Q)Stearns P.0 : 2
    47Vekic D.Bouzas Maneiro J.2 : 1
    48Tomljanovic A.Gauff C. (3)1 : 2
    49Anisimova A. (8)Birrell K.2 : 0
    50Jimenez Kasintseva V. (Q)Joint M.0 : 2
    51Collins D.Cristian J.0 : 2
    52Krueger A.Kenin S. (26)2 : 1
    53Haddad Maia B. (18)Kartal S.2 : 1
    54Boisson L.Golubic V.1 : 2
    55Sakkari M.Maria T.2 : 0
    56Bondar A.Svitolina E. (12)2 : 0
    57Alexandrova E. (13)Sevastova A.2 : 0
    58Dolehide C.Wang Xin.1 : 2
    59Zakharova A.Avanesyan E.2 : 0
    60Siegemund L.Shnaider D. (20)2 : 1
    61Kalinskaya A. (29)Ngounoue C. (WC)2 : 1
    62Putintseva Y.Cocciaretto E.2 : 0
    63Lamens S.Glozman V. (WC)2 : 0
    64Arango E.Swiatek I. (2)0 : 2

    1/32-finals
    1Sabalenka A. (1)Kudermetova P.
    2Jacquemot E.Fernandez L. (31)
    3Mertens E. (19)Sun L.
    4Bucsa C.Eala A.
    5Rybakina E. (9)Valentova T.
    6Raducanu E.Tjen J.
    7Kessler M. (32)Vondrousova M.
    8Jovic I.Paolini J. (7)
    9Pegula J. (4)Blinkova A.
    10Azarenka V.Pavlyuchenkova A.
    11Samsonova L. (17)Hon P.
    12Li A.Bencic B. (16)
    13Navarro E. (10)McNally C.
    14Uchijima M.Krejcikova B.
    15Ostapenko J. (25)Townsend T.
    16Potapova A.Andreeva M. (5)
    17Zarazua R.Parry D.
    18Sonmez Z.Kostyuk M. (27)
    19Noskova L. (21)Lys E.
    20Cirstea S.Muchova K. (11)
    21Kasatkina D. (15)Rakhimova K.
    22Baptiste H.Osaka N. (23)
    23Frech M. (28)Stearns P.
    24Vekic D.Gauff C. (3)
    25Anisimova A. (8)Joint M.
    26Cristian J.Krueger A.
    27Haddad Maia B. (18)Golubic V.
    28Sakkari M.Bondar A.
    29Alexandrova E. (13)Wang Xin.
    30Zakharova A.Siegemund L.
    31Kalinskaya A. (29)Putintseva Y.
    32Lamens S.Swiatek I. (2)

    1/16-finals
    1TBD #1TBD #2
    2TBD #3TBD #4
    3TBD #5TBD #6
    4TBD #7TBD #8
    5TBD #9TBD #10
    6TBD #11TBD #12
    7TBD #13TBD #14
    8TBD #15TBD #16
    9TBD #17TBD #18
    10TBD #19TBD #20
    11TBD #21TBD #22
    12TBD #23TBD #24
    13TBD #25TBD #26
    14TBD #27TBD #28
    15TBD #29TBD #30
    16TBD #31TBD #32

    1/8-finals
    1TBD #1TBD #2
    2TBD #3TBD #4
    3TBD #5TBD #6
    4TBD #7TBD #8
    5TBD #9TBD #10
    6TBD #11TBD #12
    7TBD #13TBD #14
    8TBD #15TBD #16

    Quarter-finals
    1TBD #1TBD #2
    2TBD #3TBD #4
    3TBD #5TBD #6
    4TBD #7TBD #8

    Semi-finals
    1TBD #1TBD #2
    2TBD #3TBD #4

    Final
    1TBD #1TBD #2
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