French OpenClay1/8-finals31 May 2026 · 11:00
M. Kostyuk
WTA #15Ukraine
VS
I. Swiatek
WTA #3Poland

Odds

Market
Kostyuk
Swiatek
Change
Winner
Total
line 20.5
1.88
Over 20.5
1.86
Under 20.5
Handicap
games
1.82
+4.5 games
1.92
-4.5 games

Player analysis

M. Kostyuk arrives in exceptional form — five wins from five. The serve has been a concern — averaging only 5.9/10, leaving M. Kostyuk vulnerable on second serve and facing frequent return pressure. Good performance in key moments — break point efficiency of +10 over the last five.

DS 10.04Trend down

I. Swiatek shows a 4–1 form record, though the level of opposition has been mixed — average ranking of opponents is 51. The serve has been a concern — averaging only 6.1/10, leaving I. Swiatek vulnerable on second serve and facing frequent return pressure. Break point efficiency is a red flag — I. Swiatek has been losing the important points, with a BP efficiency of -18 over recent matches.

DS 19.72Trend mixed

Recent form

Clay court stats

Kostyuk
Stat
Swiatek
62.5%
Win rate
86.2%
60–36
W–L
131–21

Avg stats — last 5

1st serve %50%
1st serve won70%
2nd serve won50%
BP converted50%
BP saved60%
Aces4
Double faults5
1st serve %70%
1st serve won70%
2nd serve won50%
BP converted60%
BP saved30%
Aces1
Double faults2

Head to head

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

00
KostyukSwiatek

No prior meetings

Clay 00first on clay
WTA #15Kostyuk vs SwiatekWTA #3

Clay H2H: 00 — first meeting on clay

Clay win rate (season): Kostyuk 63% (6036) · Swiatek 86% (13121)

Last match at French Open

W29 May 2026 · WTA French Open - 1/16-finals
vs V. Golubic · 6-4 6-3
1st serve52%1st won70.6%Aces4BP conv40%
W29 May 2026 · WTA French Open - 1/16-finals
vs M. Linette · 4-6 4-6
1st serve58%1st won66.7%Aces1BP conv71.4%

Quick comparison

KostyukStatSwiatek
63%Clay W%86%
50%1st serve % (L5)70%
70%1st serve won (L5)70%
50%BP conv (L5)60%
4Aces (L5 avg)1