San Hui Sin vs Fajing Sun — Zhangjiagang CH Round of 16

Zhangjiagang CH · CHALLENGER · Round of 16
KOR
San Hui Sin
1265ELO
1242Hard ELO
29 yrs · 178 cm · Right-handed
Last 10 · pre-match
LWWLLLLWLL
2 — 0
Sets
Monday, 25 August 2025
hard
CHN4
Fajing Sun
#273ATP
1496ELO
1473Hard ELO
$32kYTD
$490kCAREER
29 yrs · 178 cm · Right-handed
Last 10 · pre-match
LLLLLLWWLL
Sin S.
6-3 6-1
Sun F.
Sin S.
662
Sun F.
310

San Hui Sin defeated Fajing Sun 6-3 6-1 in the Zhangjiagang CH round of 16 on hard. The upset overturned the form book — Fajing Sun came in defending last year's quarter-final.

Key context

Head to head

No previous meetings on record.

Serve vs return

This season
Sin S.serving67% hold

wins 57% of points on serve vs Sun F.

Sun F.serving75% hold

wins 61% of points on serve vs Sin S.

Serve advantage — Sun F.

Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About

Statistics

This season
Sin S.Sun F.
1st serve in·Even
62%
59%
1st serve points won·Slight edge
62%
69%
2nd serve points won·Slight edge
45%
53%
Service points won·Slight edge
55%
62%
Return points won·Even
41%
38%
Break points saved·Slight edge
51%
61%
Aces / match·Slight edge
2.2
3.1
Double faults / match·Even
2.1
2.0

Averages over each player's completed matches in the selected window (28 vs 69). ATP, WTA & Challenger.

Umpiry Score

Pre-match
Sin S.
4.5
Heavy underdogUmpiry Score
  • Extended break: 28 days (−0.3)
Sun F.
6.1
Even matchUmpiry Score
  • Extended break: 35 days (−0.7)
Form & Matchup
1.7Hard Elo 1242
Surface ELO
8.3+231 Hard Elo edge
1.6Overall Elo 1265
ELO gap
8.4Overall Elo 1496
5.0No prior meetings
H2H
5.0
4.3
Surface form
6.4
0.0
Win streak
0.0
Fatigue & Travel
9.0
Prev. match
Context
5.0
Defending pts
7.0

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
Sin S.Sun F.
Freshness·
—
95

Sun F.: 8 days rest · 2 matches (14d). Higher means fresher. About

Conditions

Court speed
Fastbig serves, short points
SlowFast
Final
Shimabukuro S.[3]
Crawford O.[6]
6-33-67-5
Semi-finals
Shimabukuro S.[3]
Uchiyama Y.[5]
6-37-65
Crawford O.[6]
Isomura K.
7-616-0
Quarter-finals
Uchiyama Y.[5]
Uchida K.
6-36-4
Isomura K.
Sin S.
2-66-26-4
Shimabukuro S.[3]
Simakin I.[7]
6-46-3
Crawford O.[6]
Tokuda R.
7-613-66-2
R16
Crawford O.[6]
Moriya H.
6-34-66-4
Tokuda R.
Sekulic P.
6-46-4
Sin S.
Sun F.[4]
6-36-1
Isomura K.
Cui J.
3-66-27-69
Uchiyama Y.[5]
Huang T.
6-26-4
Shimabukuro S.[3]
Peliwo F.
6-36-4
Uchida K.
Noguchi R.[2]
6-17-64
Simakin I.[7]
Charlton J.
6-46-4
R32
Sekulic P.
Tomic B.[1]
6-11-67-66
Charlton J.
Te R.
6-46-776-4
Tokuda R.
Binda A.
5-76-36-3
Moriya H.
Yevseyev D.
6-24-66-4
Isomura K.
Fomin S.
6-36-2
Simakin I.[7]
Wu T.
6-47-61
Peliwo F.
Bar Biryukov P.
6-16-2
Uchiyama Y.[5]
Kikuchi Y.
6-25-76-1
Uchida K.
Castelnuovo L.
7-646-3
Noguchi R.[2]
Xiao L.
7-666-1
Sun F.[4]
Mo Y.
3-66-36-4
Crawford O.[6]
Imamura M.
6-36-2
Sin S.
Shin W.
7-57-64
Cui J.
Gea A.[8]
5-77-646-0
Shimabukuro S.[3]
Watt J.
6-43-66-2
Huang T.
Uesugi K.
6-16-743-2