Sijia Wei vs Ayumi Koshiishi — W50 Brisbane Quarter-final

W50 Brisbane · CHALLENGER · Quarter-final
CHN
Sijia Wei
#392WTA
1418ELO
1423Hard ELO
22 yrs · Right-handed
Last 10 · pre-match
LLWLWLLLWW
0 — 0
Sets
Monday, 10 November 2025
hard
JPN
Ayumi Koshiishi
#695WTA
1224ELO
1213Hard ELO
25 yrs
Last 10 · pre-match
WWLLLLWLWL
Wei S.
6-1 6-2
Koshiishi A.
Wei S.
662
Koshiishi A.
12–

Sijia Wei defeated Ayumi Koshiishi 6-1 6-2 in the W50 Brisbane quarter-final on hard.

Key context

Head to head

No previous meetings on record.

Serve vs return

This season
Wei S.serving55% hold

wins 52% of points on serve vs Koshiishi A.

Koshiishi A.serving50% hold

wins 50% of points on serve vs Wei S.

Baseline battle — serve is shaky, expect plenty of breaks

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
Wei S.Koshiishi A.
1st serve in·Even
61%
62%
1st serve points won·Slight edge
64%
58%
2nd serve points won·Even
46%
42%
Service points won·Slight edge
57%
52%
Return points won·Even
42%
45%
Break points saved·Slight edge
56%
49%
Aces / match·Even
2.4
2.2
Double faults / match·Slight edge
3.4
2.7

Averages over each player's completed matches in the selected window (48 vs 44). ATP, WTA & Challenger.

Umpiry Score

Pre-match
Wei S.
5.8
Slight disadvantageUmpiry ScorePartial · surface data limited
Koshiishi A.
5.5
Slight disadvantageUmpiry ScorePartial · surface data limited
Form & Matchup
5.0No prior meetings
H2H
5.0
2.8
Surface form
2.7
0.0Lost last 2
Win streak
0.0Lost last 4
Fatigue & Travel
9.2
Minutes 14d
3-set count
7.0
9.0
Prev. match
Context
5.0
Defending pts
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.

Conditions

Court speed
Medium-fastrewards aggression
SlowFast

Draw

Final
Swan K.
Wei S.
3-66-36-3
Semi-finals
Wei S.
Preston T.
6-47-67
Swan K.
Jones E.
6-22-66-3
Quarter-finals
Preston T.
Kuramochi M.
6-16-3
Wei S.
Koshiishi A.
6-16-2
Swan K.
Aiava D.
6-747-56-3
Jones E.
Yamaguchi M.
7-56-4
R16
Yamaguchi M.
Rokusek S.
7-56-2
Koshiishi A.
Varaksina A.
6-27-65
Kuramochi M.
Inglis M.
6-36-746-3
Preston T.
Da Silva Fick G.
6-16-1
Aiava D.
Imamura S.
6-36-4
Wei S.
Kokkinis T.
3-66-07-5
Jones E.
Zavatska K.
6-33-66-3
Swan K.
Cabrera L.
6-26-4
R32
Koshiishi A.
Hule P.
6-36-2
Rokusek S.
Yang Y.
6-04-67-64
Jones E.
Yuan C.
6-46-2
Varaksina A.
Hosogi S.
6-36-3
Yamaguchi M.
Tian F.
2-67-56-1
Zavatska K.
Khan L.
6-36-2
Preston T.
Subasic A.
7-56-3
Da Silva Fick G.
Back D.
6-22-66-4
Kuramochi M.
Bulatova A.
6-46-1
Inglis M.
Lee E.
7-626-3
Imamura S.
Webb S.
1-66-36-4
Wei S.
Yamazaki I.
6-46-3
Kokkinis T.
Jang S.
6-37-63
Aiava D.
Sato N.
6-13-67-65
Swan K.
Barry M.
6-36-1
Cabrera L.
Micic E.
6-46-3