Katie Volynets vs Simona WaltertOeiras 125 Semi-final

Oeiras 125 · CHALLENGER · Semi-final
#93WTA
1786ELO
1715Clay ELO
24 yrs · 170 cm · Right-handed
Last 10 · pre-match
LWWWWLWWLW
0 — 0
Sets
Monday, 14 April 2025
clay
#81WTA
1670ELO
1654Clay ELO
25 yrs · Right-handed
Last 10 · pre-match
LWWWWLLLLW
Volynets K.
6-1 6-4
Waltert S.
Volynets K.
662
Waltert S.
14

Katie Volynets defeated Simona Waltert 6-1 6-4 in the Oeiras 125 semi-final on clay. The upset overturned the form book — Simona Waltert came in ranked #81.

Key context

Head to head

No previous meetings on record.

Serve vs return

This season
Volynets K.serving37% hold

wins 45% of points on serve vs Waltert S.

Waltert S.serving42% hold

wins 47% of points on serve vs Volynets K.

Baseline battle — serve is shaky, expect plenty of breaks

Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About

Statistics

This season
1st serve in·Clear edge
78%
64%
1st serve points won·Slight edge
58%
63%
2nd serve points won·Even
44%
47%
Service points won·Even
55%
57%
Return points won·Even
47%
47%
Break points saved·Even
55%
57%
Aces / match·Slight edge
1.2
1.9
Double faults / match·Dominant
1.1
3.6

Averages over each player's completed matches in the selected window (92 vs 97). ATP, WTA & Challenger.

Clutch

Under pressure
Clutch Rating·Slight edge
67
78
Break points saved·Even
75
79
Break points won·Even
97
94
Deciding sets·Slight edge
70
80
Tiebreaks·Dominant
56
85

Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About

Umpiry Score

Pre-match
7.1
Strong advantageUmpiry Score
6.3
Marginal edgeUmpiry Score
Form & Matchup
5.2+61 Clay Elo edge
Surface ELO
4.8Clay Elo 1654
5.9Overall Elo 1786
ELO gap
4.1Overall Elo 1670
5.0No prior meetings
H2H
5.0
7.9
Surface form
7.1
Fatigue & Travel
8.6
Minutes 14d
Context
5.0
Defending pts
5.0

The Umpiry Score combines match-context factors — matchup, form, fatigue, travel and motivation — into a single 0–10 score, updated daily. Read how it works.

Freshness

Recent load
Freshness·Slight edge
61
71

Volynets K.: 2 days rest · 5 matches, 105 games (7d) · Waltert S.: 3 days rest · 4 matches, 73 games (7d). Higher means fresher. About

Conditions

Court speed
Slowlow bounce, long rallies
SlowFast