Kokoro Isomura vs Petr Bar Biryukov — Shanghai CH Qualifying Round 2

Shanghai CH · CHALLENGER · Qualifying Round 2
JPN9
Kokoro Isomura
#557ATP
1206ELO
1176Hard ELO
23 yrs · 175 cm · Right-handed
Last 10 · pre-match
LLLWLWLWLL
2 — 0
Sets
Monday, 1 September 2025
hard
RUS2
Petr Bar Biryukov
#286ATP
1414ELO
1418Hard ELO
24 yrs · 196 cm · Left-handed
Last 10 · pre-match
LLLWWWWWWW
Isomura K.
7-6 7-5
Bar Biryukov P.
Isomura K.
7772
Bar Biryukov P.
6350

Kokoro Isomura defeated Petr Bar Biryukov 7-6 7-5 in the Shanghai CH qualifying round 2 on hard.

Key context

Head to head

No previous meetings on record.

Serve vs return

This season
Isomura K.serving86% hold

wins 67% of points on serve vs Bar Biryukov P.

Bar Biryukov P.serving86% hold

wins 67% of points on serve vs Isomura K.

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

Statistics

This season
Isomura K.Bar Biryukov P.
1st serve in·Even
63%
60%
1st serve points won·Slight edge
68%
76%
2nd serve points won·Even
48%
50%
Service points won·Slight edge
61%
66%
Return points won·Slight edge
38%
33%
Break points saved·Slight edge
60%
65%
Aces / match·Dominant
2.0
11.3
Double faults / match·Dominant
3.2
4.8

Averages over each player's completed matches in the selected window (41 vs 68). ATP, WTA & Challenger.

Umpiry Score

Pre-match
Isomura K.
5.9
Even matchUmpiry Score
Bar Biryukov P.
6.6
Marginal edgeUmpiry Score
Form & Matchup
2.6Hard Elo 1176
Surface ELO
7.4+242 Hard Elo edge
2.8Overall Elo 1206
ELO gap
7.2Overall Elo 1414
5.0No prior meetings
H2H
5.0
6.5
Surface form
3.5
7.03-match win streak
Win streak
0.0Lost last 3
Fatigue & Travel
4.9
Minutes 14d
9.4
4.0
3-set count
7.0
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.

Freshness

Recent load
Isomura K.Bar Biryukov P.
Freshness·
—
100

Bar Biryukov P.: 21 days rest. Higher means fresher. About

Conditions

Court speed
Fastbig serves, short points
SlowFast
Q2
Peliwo F.
Watt J.
6-23-66-3
Samrej K.[4]
Imamura M.[7]
6-746-26-4
Huang T.
Fomin S.[10]
6-36-2
Zeng Y.
Moriya H.[5]
6-46-3
Isomura K.[9]
Bar Biryukov P.[2]
7-637-5
Tokuda R.[8]
Charlton J.
6-46-2
Q1
Moriya H.[5]
Zhu S.
6-45-0
Peliwo F.
Castelnuovo L.[11]
7-636-3
Samrej K.[4]
Wang A.
6-17-67
Bar Biryukov P.[2]
Ramanathan R.
7-667-63
Watt J.
Binda A.[6]
6-36-4
Isomura K.[9]
Rai A.
7-647-66
Charlton J.
Yevseyev D.[1]
4-66-42-0
Tokuda R.[8]
Zhang L.
6-26-2
Huang T.
Bouzige M.[3]
7-636-3
Fomin S.[10]
Zhang T.
6-26-0
Imamura M.[7]
Liu H.
6-46-1
Zeng Y.
Matsuda R.[12]
7-613-66-3