Sao PauloHard1/16-finals8 Sep 2025 · 18:10
A. Hartono
#296 · Netherlands
VS
S. Sierra
#78 · Argentina

Odds

Market
Hartono
Sierra
Winner

Player analysis

A. Hartono has been inconsistent recently, going 3–2 over the last five matches. Form is mixed — DS ranging from -29.8 to 21.3, with at least one match where A. Hartono was clearly outplayed. The serve has been a concern — averaging only 5.5/10, leaving A. Hartono vulnerable on second serve and facing frequent return pressure.

DS 4.96Trend mixed

S. Sierra comes into this match in difficult form — 1 wins from the last 5. Point statistics tell a concerning story — average DS of -16.0, meaning S. Sierra has been on the wrong side of most exchanges over five matches. The serve has been a concern — averaging only 5.0/10, leaving S. Sierra vulnerable on second serve and facing frequent return pressure.

DS -16.04Trend mixed

Recent form

Hard court stats

Hartono
Stat
Sierra
56.3%
Win rate
62.3%
151–117
W–L
43–26

Avg stats — last 5

1st serve %60%
1st serve won60%
2nd serve won40%
BP converted50%
BP saved60%
Aces3
Double faults5
1st serve %60%
1st serve won60%
2nd serve won40%
BP converted50%
BP saved50%
Aces3
Double faults4