WTA Billie Jean King Cup - World GroupHard12 Apr 2025 · 15:15
C. Naef
#209 · Switzerland
VS
M. Kostyuk
#23 · Ukraine

Odds

Market
Naef
Kostyuk
Winner

Player analysis

C. Naef comes into this match in difficult form — 0 wins from the last 5. Point statistics tell a concerning story — average DS of -12.4, meaning C. Naef has been on the wrong side of most exchanges over five matches. The serve has been a concern — averaging only 5.1/10, leaving C. Naef vulnerable on second serve and facing frequent return pressure.

DS -12.43Trend mixed

M. Kostyuk arrives in exceptional form — five wins from five. The serve has been a concern — averaging only 6.0/10, leaving M. Kostyuk vulnerable on second serve and facing frequent return pressure. Good performance in key moments — break point efficiency of +21 over the last five.

DS 19.66Trend mixed

Recent form

Hard court stats

Naef
Stat
Kostyuk
69.6%
Win rate
63.6%
94–41
W–L
154–88

Avg stats — last 5

1st serve %60%
1st serve won60%
2nd serve won40%
BP converted40%
BP saved60%
Aces3
Double faults6
1st serve %60%
1st serve won70%
2nd serve won50%
BP converted60%
BP saved60%
Aces4
Double faults5

Head to head

Career meetings between these two players (all tournaments), not only this event. The match at the top of the page is the current tournament fixture.

10
Hard 10
C. Naef vs M. Kostyuk head to head match history
DateTournamentSurfaceRoundWinnerScore
WTA Billie Jean King Cup - World GroupHardNaef6-4 7-6