Lois Boisson vs Dayana Yastremska — Nottingham Round of 32

Nottingham · WTA · Round of 32

FRA

Lois Boisson

#155WTA

1758ELO

1531Grass ELO

$57kYTD

$1.2MCAREER

23 yrs · 175 cm · Right-handed

Last 10

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—

Sets

Monday, 15 June 2026 · 10:00

grass

UKR

Dayana Yastremska

#49WTA

1816ELO

1700Grass ELO

$373kYTD

$6.4MCAREER

26 yrs · 175 cm · Right-handed

Last 10

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Lois Boisson faces Dayana Yastremska in the Nottingham round of 32 on grass. Dayana Yastremska is the paper favourite — ranked #49, defending last year's final, a roughly 170-point grass Elo advantage — but Lois Boisson has won their only previous meeting, though none on grass.

Key context

Head-to-head: Lois Boisson leads the head-to-head 1–0, but this is their first meeting on grass. Last met at Hamburg 2025.
Stage: Dayana Yastremska defends last year's final.
Fatigue load: Both played one three-setter in the past fortnight — neither arrives fresh.

Win Probability

Pre-match · updated 18:21 UTC

Boisson L.29%

Yastremska D.71%

Toss-up
50–58%

Slight edge
58–67%

Clear favourite
67–80%

Strong favourite
80%+

Clear favourite · Yastremska D. clearly ahead, but no certainty

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.

5.6

Slight disadvantageUmpiry ScorePartial · surface data limited

Yastremska D.

7.5

Dominant favouriteUmpiry Score

Form & Matchup

2.9Grass Elo 1531

Surface ELO

7.1+169 Grass Elo edge

3.7Overall Elo 1758

ELO gap

6.3Overall Elo 1816

5.0First meeting on grass

H2H

5.0First meeting on grass

Surface form

6.57 of last 10 on grass

0.0Lost last 3

Win streak

0.0

Fatigue & Travel

7.01 three-setter in 14 days

3-set count

7.01 three-setter in 14 days

Context

5.0Didn't play here last year

Defending pts

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.

Conditions

Weather forecast

14°CClear

Wind 8 km/hHumidity 63%

Head to head

1–0

Date	Tournament	Round	Surface	Winner	Score
2025-07-14	Hamburg	SF	clay	Lois Boisson	6-1 7-6(5)

Statistics

Recent form

Boisson L.Yastremska D.

64%1st serve in+2%62%

68%1st serve points won+8%60%

45%2nd serve points won+3%48%

60%Service points won+4%56%

42%Return points won+2%44%

56%Break points saved+3%53%

3.5Aces / match+1.32.2

4Double faults / match+1.15.1

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