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

Seoul CH · CHALLENGER · Round of 32
CHN
Yi Zhou
#240ATP
1456ELO
1445Hard ELO
21 yrs · 193 cm · Right-handed
Last 10 · pre-match
LWWLWWLWWW
2 — 0
Sets
Monday, 27 October 2025
hard
KOR
San Hui Sin
1265ELO
1242Hard ELO
29 yrs · 178 cm · Right-handed
Last 10 · pre-match
LWWLLLLWLL
Zhou Y.
7-6 6-0
Sin S.
Zhou Y.
7762
Sin S.
6000

Yi Zhou defeated San Hui Sin 7-6 6-0 in the Seoul CH round of 32 on hard. The result followed the form book — Yi Zhou came in defending last year's round of 32.

Key context

Head to head

No previous meetings on record.

Serve vs return

This season
Zhou Y.serving78% hold

wins 62% of points on serve vs Sin S.

Sin S.serving71% hold

wins 59% of points on serve vs Zhou Y.

Serve advantage — Zhou Y.

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
Zhou Y.Sin S.
1st serve in·Even
62%
62%
1st serve points won·Slight edge
72%
63%
2nd serve points won·Slight edge
51%
45%
Service points won·Slight edge
64%
56%
Return points won·Even
37%
41%
Break points saved·Slight edge
63%
52%
Aces / match·Dominant
6.4
2.3
Double faults / match·Slight edge
2.5
2.1

Averages over each player's completed matches in the selected window (60 vs 28). ATP, WTA & Challenger.

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+203 Hard Elo edge
Surface ELO
2.3Hard Elo 1242
7.7Overall Elo 1456
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.

Freshness

Recent load
Zhou Y.Sin S.
Freshness·
73
—

Zhou Y.: 2 days rest · 3 matches, 65 games (7d). Higher means fresher. About

Conditions

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