Sao PauloHard1/8-finals10 Sep 2025 · 20:10
J. Tjen
#39 · Indonesia
VS
M. Okalova
#394 · Slovakia

Odds

Market
Tjen
Okalova
Winner

Player analysis

J. Tjen shows a 4–1 form record, though the level of opposition has been mixed — average ranking of opponents is 257. Point statistics tell a concerning story — average DS of -6.8, meaning J. Tjen has been on the wrong side of most exchanges over five matches. The serve has been a concern — averaging only 5.3/10, leaving J. Tjen vulnerable on second serve and facing frequent return pressure. Break point efficiency is a red flag — J. Tjen has been losing the important points, with a BP efficiency of -17 over recent matches.

DS -6.83Trend mixed

M. Okalova comes into this match in difficult form — 2 wins from the last 5. Point statistics tell a concerning story — average DS of -8.0, meaning M. Okalova has been on the wrong side of most exchanges over five matches. The serve has been a concern — averaging only 4.9/10, leaving M. Okalova vulnerable on second serve and facing frequent return pressure.

DS -7.97Trend mixed

Recent form

Hard court stats

Tjen
Stat
Okalova
81.5%
Win rate
49.1%
101–23
W–L
26–27

Avg stats — last 5

1st serve %60%
1st serve won60%
2nd serve won40%
BP converted30%
BP saved50%
Aces3
Double faults2
1st serve %70%
1st serve won60%
2nd serve won30%
BP converted50%
BP saved50%
Aces0
Double faults10

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
J. Tjen vs M. Okalova head to head match history
DateTournamentSurfaceRoundWinnerScore
Sao PauloHard1/8-finalsTjen6-1 6-0