Jason Kubler vs Adam Walton — Gwangju CH Round of 16

Gwangju CH · CHALLENGER · Round of 16
AUS
Jason Kubler
#468ATP
1685ELO
1635Hard ELO
33 yrs · 178 cm · Right-handed
Last 10 · pre-match
WWWWWWWLLW
2 — 0
Sets
Monday, 21 April 2025
hard
Adam Walton
AUS1
Adam Walton
#79ATP
1703ELO
1669Hard ELO
$499kYTD
$2.3MCAREER
27 yrs · 183 cm · Right-handed
Last 10 · pre-match
LWWWWLLWWW
Kubler J.
6-4 6-1
Walton A.
Kubler J.
662
Walton A.
410

Jason Kubler defeated Adam Walton 6-4 6-1 in the Gwangju CH round of 16 on hard. The upset overturned the form book — Adam Walton came in ranked #79.

Key context

Head to head

No previous meetings on record.

Serve vs return

This season
Kubler J.serving89% hold

wins 69% of points on serve vs Walton A.

Walton A.serving83% hold

wins 65% of points on serve vs Kubler J.

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

Serve & return on hard

Kubler J.Walton A.
—
Serve
35
—
Return
17

Per-surface Serve / Return Rating (0–100, percentile within the hard field, opponent-adjusted over 52 weeks). About

Statistics

This season
Kubler J.Walton A.
1st serve in·Even
62%
64%
1st serve points won·Even
74%
72%
2nd serve points won·Even
52%
53%
Service points won·Even
66%
65%
Return points won·Even
39%
36%
Break points saved·Even
60%
62%
Aces / match·Even
6.8
6.8
Double faults / match·Slight edge
2.4
2.0

Averages over each player's completed matches in the selected window (38 vs 108). ATP, WTA & Challenger.

Clutch

Under pressure
Kubler J.Walton A.
Clutch Rating·Slight edge
59
65
Break points saved·Slight edge
90
95
Break points won·Dominant
46
20
Deciding sets·Clear edge
79
95
Tiebreaks·Dominant
37
70

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

Umpiry Score

Pre-match
Kubler J.
6.4
Marginal edgeUmpiry Score
Walton A.
7.0
Strong advantageUmpiry Score
Form & Matchup
5.0Hard Elo 1635
Surface ELO
5.0+34 Hard Elo edge
5.2Overall Elo 1685
ELO gap
4.8Overall Elo 1703
0.0No prior meetings
H2H
10.0
7.9
Surface form
7.2
0.0
Win streak
0.0
Fatigue & Travel
5.3
Minutes 14d
4.1
7.0
3-set count
4.0
4.0
Prev. match
8.0
Context
5.0
Defending pts
5.0
Opponent rise
5.0

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.

Freshness

Recent load
Kubler J.Walton A.
Freshness·
—
54

Walton A.: 2 days rest · 5 matches, 122 games (7d). Higher means fresher. About

Conditions

Court speed
Medium-slowfavours grinders
SlowFast
Final
Kubler J.
Kachmazov A.
7-56-776-3
Semi-finals
Kubler J.
Schoolkate T.[4]
7-56-4
Kachmazov A.
Watanuki Y.
6-46-3
Quarter-finals
Kachmazov A.
Jasika O.
6-46-2
Watanuki Y.
Holt B.[3]
7-57-62
Kubler J.
Grenier H.
6-26-1
Schoolkate T.[4]
Chung H.
6-36-1
R16
Grenier H.
Uchiyama Y.
W/O
Kubler J.
Walton A.[1]
6-46-1
Jasika O.
Escoffier A.
4-67-56-1
Schoolkate T.[4]
Simakin I.
6-46-2
Holt B.[3]
Park U.
3-66-37-65
Chung H.
Trotter J.[6]
6-27-61
Watanuki Y.
Monday J.
6-36-776-4
Kachmazov A.
Noguchi R.
7-636-4
R32
Walton A.[1]
Sharipov M.
6-36-2
Trotter J.[6]
Durasovic V.
6-756-46-3
Watanuki Y.
Mccabe J.[8]
7-6126-3
Monday J.
Svajda Z.
6-26-4
Escoffier A.
Eubanks C.[2]
6-36-4
Kachmazov A.
Atmane T.[7]
7-610-0
Grenier H.
Tu L.[5]
6-46-2
Kubler J.
Kwon S.
6-36-4
Uchiyama Y.
Uchida K.
7-53-66-4
Simakin I.
Ruusuvuori E.
6-26-3
Jasika O.
Zhou Y.
7-624-66-2
Chung H.
Lestienne C.
6-16-4
Park U.
Chung Y.
4-66-36-4
Holt B.[3]
Hsu Y.
6-36-0
Schoolkate T.[4]
Sakamoto R.
7-647-5
Noguchi R.
Shimabukuro S.
6-46-0