Camila Osorio vs Simona WaltertWimbledon Round of 128

Wimbledon · WTA · Round of 128
#69WTA
1823ELO
1636Grass ELO
24 yrs · 162 cm · Right-handed
Last 10
LLWWLWWLWW
Sets
Monday, 29 June 2026 ·
grass
#88WTA
1682ELO
1487Grass ELO
25 yrs · Right-handed
Last 10
LLLWWLLLWW
Osorio C.
vs
Waltert S.

Camila Osorio faces Simona Waltert in the Wimbledon round of 128 on grass. Camila Osorio holds the paper edge — ranked #69, defending last year's round of 128, a roughly 150-point grass Elo advantage.

Win Probability

Pre-match · updated 13:20 UTC
Osorio C.80%
Waltert S.20%
Toss-up
50–58%
Slight edge
58–67%
Clear favourite
67–80%
Strong favourite
80%+

Strong favourite · Osorio C. heavily favoured

Calibrated model · 65% favourite accuracy (2025–26, out-of-sample). Probability is a statistical estimate, not a certainty. How it works.

Key context

  • Stage: Camila Osorio defends last year's round of 128.
  • Fatigue load: Simona Waltert carries the heavier recent load — 1 three-setter to 0 in the past fortnight.

Umpiry Score

Pre-match
6.6
Marginal edgeUmpiry Score
5.6
Slight disadvantageUmpiry Score
Form & Matchup
6.9+149 Grass Elo edge
Surface ELO
3.1Grass Elo 1487
5.9Overall Elo 1823
ELO gap
4.1Overall Elo 1682
5.0No prior meetings
H2H
5.0No prior meetings
3.24 of last 10 on grass
Surface form
3.44 of last 10 on grass
0.0Lost last 2
Win streak
0.0Lost last 2
Fatigue & Travel
3-set count
7.01 three-setter in 14 days
Context
6.0Reached the R128 here last year
Defending pts
5.0Didn't play here last year

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.

Form trajectory

Direction of recent form — results vs Elo expectation blended with serve/return vs each player's baseline, over the last few months. About

28 vs 28 matches

Statistics

This season
1st serve in·Even
64%
63%
1st serve points won·Even
64%
62%
2nd serve points won·Even
44%
46%
Service points won·Even
57%
56%
Return points won·Even
47%
46%
Break points saved·Even
56%
58%
Aces / match·Even
1.8
1.4
Double faults / match·Dominant
5.3
3.8

Averages over each player's completed matches in the selected window (28 vs 28). ATP, WTA & Challenger.

Serve vs return

This season
Osorio C.serving75% hold

wins 61% of points on serve vs Waltert S.

Waltert S.serving71% hold

wins 59% of points on serve vs Osorio C.

Even serve battle

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

Clutch

Under pressure
Clutch Rating·Slight edge
85
78
Break points saved·Slight edge
73
79
Break points won·Slight edge
99
94
Deciding sets·Clear edge
97
79
Tiebreaks·Even
84
85

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

Freshness

Recent load
Freshness·Slight edge
95
89

Osorio C.: 6 days rest · 1 match, 18 games (7d) · Waltert S.: 6 days rest · 1 match, 33 games (7d). Higher means fresher. About

Conditions

Court speed
Medium-fastrewards aggression
SlowFast
Weather forecast
18°CPartly cloudy
Wind 9 km/hHumidity 55%

Head to head

No previous meetings on record.

Draw — qualifying

Quarter-finals
Semi-finals
Final