Billy Harris vs Otto VirtanenNottingham Quarter-final

Nottingham · CHALLENGER · Quarter-final
#142ATP
1486ELO
1493Grass ELO
$229kYTD
$1.5MCAREER
31 yrs · 193 cm · Right-handed
Last 10
WWLWLWLWLL
Sets
Thursday, 18 June 2026 ·
grass
#160ATP
1706ELO
1695Grass ELO
$193kYTD
$1.5MCAREER
24 yrs · 193 cm · Right-handed
Last 10
WWLLWWWLWW
Harris B.
vs
Virtanen O.

Billy Harris faces Otto Virtanen in the Nottingham quarter-final on grass. Billy Harris holds the paper edge — ranked #142, leading the head-to-head 1–0. Recent grass form is closely matched.

Win Probability

Pre-match · updated 21:21 UTC
Harris B.7%
Virtanen O.93%
Toss-up
50–58%
Slight edge
58–67%
Clear favourite
67–80%
Strong favourite
80%+

Strong favourite · Virtanen O. heavily favoured

Calibrated model · 63% favourite accuracy (2025–26, out-of-sample). Probability is a statistical estimate, not a certainty. How it works.

Key context

Umpiry Score

Pre-match
4.8
Heavy underdogUmpiry Score
  • Back-to-back day (−0.5)
6.5
Marginal edgeUmpiry Score
  • Back-to-back day (−0.5)
Form & Matchup
2.5Grass Elo 1493
Surface ELO
7.5+202 Grass Elo edge
2.2Overall Elo 1486
ELO gap
7.8Overall Elo 1706
5.0First meeting on grass
H2H
5.0First meeting on grass
6.46 of last 10 on grass
Surface form
7.68 of last 10 on grass
Fatigue & Travel
0.03 three-setters in 14 days
3-set count
0.03 three-setters in 14 days
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.

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

26 vs 24 matches

Statistics

This season
1st serve in·Even
59%
60%
1st serve points won·Even
71%
75%
2nd serve points won·Even
50%
52%
Service points won·Even
62%
66%
Return points won·Even
34%
37%
Break points saved·Slight edge
58%
67%
Aces / match·Dominant
4.8
8.6
Double faults / match·Dominant
2.0
3.5

Averages over each player's completed matches in the selected window (26 vs 24). ATP, WTA & Challenger.

Serve vs return

This season
Harris B.serving86% hold

wins 67% of points on serve vs Virtanen O.

Virtanen O.serving93% hold

wins 73% of points on serve vs Harris B.

Serve-dominated — both hold easily, expect tiebreaks

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·Even
46
43
Break points saved·Even
91
94
Break points won·Slight edge
10
3
Deciding sets·Dominant
80
42
Tiebreaks·Dominant
25
88

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

Freshness

Recent load
Freshness·Even
67
66

Harris B.: 2 days rest · 2 matches, 51 games (7d) · Virtanen O.: 1 day rest · 2 matches, 56 games (7d). Higher means fresher. About

Conditions

Court speed
Fastbig serves, short points
SlowFast
Weather forecast
25°COvercast
Wind 18 km/hHumidity 54%

Head to head

10
DateTournamentRoundSurfaceWinnerScore
2024-09-11Davis Cup Finals RR: FIN vs GBRRRhardBilly Harris6-4 7-6(4)