Sao PauloHard1/16-finals8 Sep 2025 · 23:00
J. Riera
WTA #179Argentina
VS
V. Diatchenko
WTA #539Russia

Odds

Market
Riera
Diatchenko
Winner

Player analysis

J. Riera shows a 4–1 form record, though the level of opposition has been mixed — average ranking of opponents is 315. Form is mixed — DS ranging from -11.3 to 14.7, with at least one match where J. Riera was clearly outplayed. The serve has been a concern — averaging only 5.6/10, leaving J. Riera vulnerable on second serve and facing frequent return pressure.

DS 3.15Trend mixed

V. Diatchenko comes into this match in difficult form — 0 wins from the last 5. Point statistics tell a concerning story — average DS of -6.5, meaning V. Diatchenko has been on the wrong side of most exchanges over five matches. The serve has been a concern — averaging only 5.0/10, leaving V. Diatchenko vulnerable on second serve and facing frequent return pressure.

DS -6.48Trend up

Recent form

Hard court stats

Riera
Stat
Diatchenko
48.3%
Win rate
60.4%
28–30
W–L
195–128

Avg stats — last 5

1st serve %70%
1st serve won60%
2nd serve won50%
BP converted50%
BP saved60%
Aces2
Double faults4
1st serve %60%
1st serve won60%
2nd serve won40%
BP converted50%
BP saved50%
Aces0
Double faults6

Head to head

First career meeting — rankings, last results at this tournament and a quick stat comparison below.

00
RieraDiatchenko

No prior meetings

Hard 00first on hard
WTA #179Riera vs DiatchenkoWTA #539

Hard H2H: 00 — first meeting on hard

Hard win rate (season): Riera 48% (2830) · Diatchenko 60% (195128)

Quick comparison

RieraStatDiatchenko
48%Hard W%60%
70%1st serve % (L5)60%
60%1st serve won (L5)60%
50%BP conv (L5)50%
2Aces (L5 avg)0