Lois Boisson vs Solana Sierra — s Hertogenbosch Round of 32

s Hertogenbosch · WTA · Round of 32
FRA
Lois Boisson
#155WTA
1758ELO
1531Grass ELO
$57kYTD
$1.2MCAREER
23 yrs · 175 cm · Right-handed
Last 10
LLWLLLLWWL
—
Sets
Wednesday, 10 June 2026 ·
grass
COURT 3 · 1st on
ARG
Solana Sierra
#56WTA
1739ELO
1600Grass ELO
21 yrs · Right-handed
Last 10
LWWLWWLWWL

Win Probability

Pre-match · updated 06:20 UTC
Boisson L.52%
Sierra S.48%
Toss-up
50–58%
Slight edge
58–67%
Clear favourite
67–80%
Strong favourite
80%+

Toss-up · Too close to call

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

Umpiry Score

Pre-match
Boisson L.
4.9
Heavy underdogUmpiry ScorePartial · surface data limited
  • Surface jump clay↔grass (−0.8)
Sierra S.
5.8
Slight disadvantageUmpiry Score
  • Surface jump clay↔grass (−0.8)
Form & Matchup
4.1Grass Elo 1531
Surface ELO
5.9+69 Grass Elo edge
4.8Overall Elo 1758
ELO gap
5.2Overall Elo 1739
5.0First meeting on grass
H2H
5.0First meeting on grass
Surface form
6.75 of last 8 on grass
0.0Lost last 2
Win streak
0.0
Fatigue & Travel
3-set count
7.01 three-setter in 14 days
3.0Clay → Grass
Surface transition
3.0Clay → Grass
Context
5.0Didn't play 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.

When it starts

1st on COURT 3 · not before Starting at 11:00 AM · up next on court

  1. 1Boisson L. v Sierra S.This match
  2. 2Bouzas Maneiro J. v Tomljanovic A.

Conditions

Weather forecast
15°CPartly cloudy
Wind 14 km/hHumidity 74%

Head to head

No previous meetings on record.

Statistics

Recent form
Boisson L.Sierra S.
63%1st serve in63%
68%1st serve points won+5%63%
44%2nd serve points won+3%41%
59%Service points won+4%55%
42%Return points won42%
59%Break points saved+4%55%
3.5Aces / match+1.32.2
3.8Double faults / match+0.74.5

Averages from each player's recent completed matches (20 vs 20). ATP, WTA & Challenger.

Draw