Yi Zhou vs San Hui Sin — Seoul CH Round of 32

Seoul CH · CHALLENGER · Round of 32
CHN
Yi Zhou
#217ATP
1455ELO
1445Hard ELO
21 yrs · 193 cm · Right-handed
Last 10
LLLLWLWLLL
2 — 0
Sets
Monday, 27 October 2025
hard
KOR
San Hui Sin
#429ATP
1265ELO
1242Hard ELO
29 yrs · 178 cm · Right-handed
Last 10
LWWLLLLWLL

Umpiry Score

Pre-match
Zhou Y.
5.5
Slight disadvantageUmpiry Score
  • Recent retirement (−1.5)
Sin S.
5.6
Slight disadvantageUmpiry Score
Form & Matchup
7.7+202 Hard Elo edge
Surface ELO
2.3Hard Elo 1242
7.7Overall Elo 1455
ELO gap
2.3Overall Elo 1265
5.0No prior meetings
H2H
5.0
5.8
Surface form
5.4
0.0
Win streak
0.0Lost last 2
Fatigue & Travel
5.0
Minutes 14d
7.0
3-set count
8.0
Prev. match
9.0
Context
6.0
Defending pts
6.0

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.

Zhou Y.
7762
Sin S.
6000

Head to head

No previous meetings on record.

Statistics

Recent form
Zhou Y.Sin S.
62%1st serve in+1%63%
73%1st serve points won+13%60%
52%2nd serve points won+8%44%
65%Service points won+11%54%
37%Return points won+5%42%
65%Break points saved+14%51%
6.3Aces / match+4.22.1
2.5Double faults / match+0.42.1

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

Draw

Final
Shimabukuro S.
Wong C.[5]
6-46-3
Semi-finals
Wong C.[5]
Zhou Y.
7-624-66-2
Shimabukuro S.
Ymer E.
6-14-66-3
Quarter-finals
Shimabukuro S.
Samrej K.
6-36-4
Ymer E.
Rodionov J.[4]
6-43-66-2
Zhou Y.
Ferreira Silva F.
7-666-3
Wong C.[5]
Yunchaokete B.[2]
6-36-4
R16
Shimabukuro S.
Noguchi R.
6-46-3
Samrej K.
Crawford O.
6-43-66-4
Rodionov J.[4]
Shimizu Y.
2-67-56-4
Wong C.[5]
Hsu Y.
6-47-63
Yunchaokete B.[2]
Huesler M.
6-14-66-1
Ymer E.
Isomura K.
6-26-3
Zhou Y.
Daniel T.[8]
6-786-36-0
Ferreira Silva F.
Nishioka Y.[3]
6-05-77-65
R32
Noguchi R.
Duckworth J.[1]
1-67-56-3
Shimabukuro S.
Jasika O.
6-35-77-64
Crawford O.
Rocha H.[6]
6-16-4
Rodionov J.[4]
Sekulic P.
7-646-4
Samrej K.
Mochizuki Y.
6-46-3
Shimizu Y.
Imamura M.
7-56-4
Ymer E.
Tokuda R.
5-76-16-0
Ferreira Silva F.
Johns G.
6-46-1
Isomura K.
Watanuki Y.[7]
5-2
Daniel T.[8]
Uchiyama Y.
7-55-76-2
Hsu Y.
Ajdukovic D.
6-36-4
Huesler M.
Shin W.
6-46-2
Yunchaokete B.[2]
Park U.
7-56-4
Wong C.[5]
Chung H.
6-36-2
Nishioka Y.[3]
Barton H.
6-36-2
Zhou Y.
Sin S.
7-606-0