Zarina Diyas vs Simona WaltertLausanne Round of 32

Lausanne · WTA · Round of 32
#585WTA
1533ELO
1481Clay ELO
32 yrs · 172 cm · Right-handed
Last 10 · pre-match
LLWWLWLLLL
2 — 0
Sets
Monday, 12 July 2021
clay
#81WTA
1670ELO
1654Clay ELO
25 yrs · Right-handed
Last 10 · pre-match
LWWWWLLLLW
Diyas Z.
6-4 6-4
Waltert S.
Diyas Z.
662
Waltert S.
440

Zarina Diyas defeated Simona Waltert 6-4 6-4 in the Lausanne round of 32 on clay. The upset overturned the form book — Simona Waltert came in ranked #81.

Key context

  • Match story: Zarina Diyas edged a tight contest from start to finish — 6–4 6–4.

Head to head

No previous meetings on record.

Serve vs return

This season
Diyas Z.serving60% hold

wins 54% of points on serve vs Waltert S.

Waltert S.serving62% hold

wins 55% of points on serve vs Diyas Z.

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·Slight edge
70%
63%
1st serve points won·Even
60%
63%
2nd serve points won·Even
46%
46%
Service points won·Even
56%
56%
Return points won·Even
45%
46%
Break points saved·Even
54%
56%
Aces / match·Even
1.3
1.9
Double faults / match·Dominant
2.3
4.0

Averages over each player's completed matches in the selected window (94 vs 185). ATP, WTA & Challenger.

Clutch

Under pressure
Clutch Rating·Dominant
52
78
Break points saved·Dominant
49
79
Break points won·Clear edge
78
94
Deciding sets·Clear edge
67
80
Tiebreaks·Even
81
85

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

Umpiry Score

Pre-match
4.2
Heavy underdogUmpiry Score
  • Surface jump clay↔grass (−0.8)
4.8
Heavy underdogUmpiry ScorePartial · surface data limited
  • Injury return: 728 days (−1.5)
Form & Matchup
2.6Clay Elo 1481
Surface ELO
7.4+174 Clay Elo edge
3.1Overall Elo 1533
ELO gap
6.9Overall Elo 1670
5.0No prior meetings
H2H
5.0
2.9
Surface form
0.0Lost last 2
Win streak
Fatigue & Travel
9.3
Minutes 14d
9.0
Prev. match
3.0
Surface transition
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·
67

Waltert S.: 2 days rest · 5 matches, 90 games (7d). Higher means fresher. About

Conditions

Court speed
Medium-slowfavours grinders
SlowFast