Coleman Wong vs Billy Harris — Nottingham Round of 32

Nottingham · CHALLENGER · Round of 32
HKG
Coleman Wong
[4]
#108ATP
1666ELO
1529Grass ELO
$177kYTD
$1.1MCAREER
22 yrs · 191 cm · Right-handed
Last 10
LLWLLWWLLL
—
Sets
Monday, 15 June 2026 ·
grass
Billy Harris
GBR
Billy Harris
[10]
#144ATP
1472ELO
1488Grass ELO
$193kYTD
$1.5MCAREER
31 yrs · 193 cm · Right-handed
Last 10
LWLWLLLLLL

Coleman Wong faces Billy Harris in the Nottingham round of 32 on grass. Coleman Wong holds the paper edge — ranked #108, leading the head-to-head 1–0, a roughly 40-point grass Elo advantage.

Key context

  • Fatigue load: Billy Harris carries the heavier recent load — 2 three-setters to 1 in the past fortnight.
  • Head-to-head: Coleman Wong leads the head-to-head 1–0, but this is their first meeting on grass. Last met at Roland Garros 2026.

Win Probability

Pre-match · updated 21:21 UTC
Wong C.73%
Harris B.27%
Toss-up
50–58%
Slight edge
58–67%
Clear favourite
67–80%
Strong favourite
80%+

Clear favourite · Wong C. clearly ahead, but no certainty

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

Umpiry Score

Pre-match
Wong C.
6.2
Even matchUmpiry Score
Harris B.
5.8
Slight disadvantageUmpiry Score
Form & Matchup
5.5+41 Grass Elo edge
Surface ELO
4.5Grass Elo 1488
7.4Overall Elo 1666
ELO gap
2.6Overall Elo 1472
3.0Trails 0–1 on grass
H2H
7.0Leads 1–0 on grass
3.64 of last 10 on grass
Surface form
4.95 of last 10 on grass
0.0Lost last 2
Win streak
0.0
Fatigue & Travel
7.01 three-setter in 14 days
3-set count
4.02 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.

Conditions

Court speed
Fastbig serves, short points
SlowFast
Weather forecast
14°CClear
Wind 8 km/hHumidity 63%

Head to head

1–0
DateTournamentRoundSurfaceWinnerScore
2026-05-19Roland GarrosQFclayColeman Wong6-2 4-6 7.10-6.7

Statistics

Recent form
Wong C.Harris B.
59%1st serve in59%
75%1st serve points won+4%71%
47%2nd serve points won+3%50%
64%Service points won+2%62%
36%Return points won+2%34%
63%Break points saved+7%56%
9.3Aces / match+4.64.7
2.6Double faults / match+0.91.7

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