Kokoro Isomura vs Petr Bar BiryukovPrediction, Head-to-Head Results, and Stats
Kokoro Isomura and Petr Bar Biryukov have met 2 times since 2025; Kokoro Isomura leads 2–0. Their first meeting came at Shanghai in 2025 on hard. On hard courts Isomura leads 2–0. Isomura has won the last 2 meetings. Across all meetings Isomura has taken 4 sets to Biryukov's 0. Their most recent meeting: Kokoro Isomura won at M15 Maanshan (2026).
Spread & Straight-Sets Form
Completed best-of-3 matches · Last 12 months
| Indicator | Isomura | Bar Biryukov | ||
|---|---|---|---|---|
| Indicator | Kokoro Isomura | Petr Bar Biryukov | ||
| Wins in straight sets | 65% | 20/31 | 60% | 27/45 |
| Wins a set when losing | 25% | 8/32 | 33% | 10/30 |
| Goes to a deciding set | 30% | 19/63 | 37% | 28/75 |
| Covers −1.5 sets as favorite | 46% | 11/24 | 51% | 21/41 |
| Covers +1.5 sets as underdog | 52% | 16/31 | 61% | 17/28 |
| Tiebreak sets won | 79% | 11/14 | 56% | 22/39 |
| Wins after taking set 1 | 86% | 24/28 | 83% | 38/46 |
| Wins 2-0 after taking set 1 | 71% | 20/28 | 59% | 27/46 |
Colored rows are higher-is-better: green above 50%, red below. Favorite/underdog set by book odds; cover rows count only matches with odds on record. Head-to-head: 2 of 2 completed meetings ended in straight sets (Isomura 2, Bar Biryukov 0).
Style Matchup
Playing styles and historical archetype record
Isomura
🛡️ The Spoiler
Biryukov
🤖 Servebot
Matchup analysis
The 🤖 Servebot archetype wins about 56% vs 🛡️ The Spoiler across 91 matches in our dataset: a stylistic lean toward Petr Bar Biryukov.
Servebot players often use high ace rate and dominant service to pressure the the spoiler's strong court coverage.
Previous meetings
2 career meetings, newest first
Aug 22, 2026
M15 Maanshan
H Hard · Semifinals
Sep 1, 2025
Shanghai
H Hard · 2nd Round Qualifying
Prop Research
Hit rates on common betting markets · Last 90 days
| Outcome | Isomura | Biryukov | ||
|---|---|---|---|---|
| Outcome | Kokoro Isomura | Petr Bar Biryukov | ||
| 1 or more | 40% | 4/10 | 100% | 25/25 |
| 3 or more | 30% | 3/10 | 96% | 24/25 |
| 5 or more | 20% | 2/10 | 84% | 21/25 |
| 10 or more | 0% | 0/10 | 52% | 13/25 |
| 15 or more | 0% | 0/10 | 16% | 4/25 |
| 20 or more | 0% | 0/10 | 4% | 1/25 |
Player ROI
Hypothetical if you put 1u on each player to win every one of their matches · Last 90 days
| Metric | Isomura | Biryukov |
|---|---|---|
| W-L | 8–6 | 15–10 |
| Avg odds | 2.10 | 1.75 |
| ROI % | +9.6% | -11.3% |
| Units P/L | +1.34u | -2.83u |
Travel
Last 30 days
| Metric | Isomura | Biryukov |
|---|---|---|
| Countries | — | 1 |
| Events | — | 3 |
| Matches | — | 7 |
| Distance | — | 1,297 mi · 2,087 km |
| Route | — | CHN |
Host country from each tournament in the last 30 days, including the current event even when a player arrived on a bye. Route is the order of countries visited; consecutive stops in the same country are shown once. Distance is the great-circle total between host cities, shown only when every stop in the window is geocoded. A rough fatigue signal, not a headline stat.
Common opponents
Results vs. opponents both players faced · Last 12 months
Biryukov has a higher win rate against shared opponents (75% vs Isomura's 0%).
| Opponent | Isomura | Biryukov |
|---|---|---|
| Maximus Jones | L 36 63 16 | L |
| Ilya Ivashka | L 16 26 | W 76 46 64 |
| Leo Vithoontien | L 46 64 36 | W 76 64 |
| Sora Fukuda | L 57 36 | W 75 76 |
Recent Form
Last five matches per player
Keisuke Saitoh
M25 Sapporo · 1st Round
Sep 9
Enzo Aguiard
Zhangjiagang Challenger · 3rd Round Qualifying
Aug 31
Uisung Park
Zhangjiagang Challenger · 1st Round Qualifying
Aug 30
Yanki Erel
M25 Taipei · 1st Round
Aug 26
Fitriadi M Rifqi
M15 Maanshan · Final
Aug 23
Petr Bar Biryukov
M15 Maanshan · Semifinals
Aug 22
Yusuke Takahashi
M15 Maanshan · Quarterfinals
Aug 21
Zhao Zhao
M15 Maanshan · 2nd Round
Aug 20
Omar Jasika
Jinan Challenger · 1st Round Qualifying
Oct 11
Yuta Tomida
M25 Luan · 2nd Round
Oct 8
Maxim Shin
M25 Luan · 1st Round
Oct 7
Dane Sweeny
Jingshan Challenger · 2nd Round
Oct 1
Masamichi Imamura
Jingshan Challenger · 1st Round
Sep 30
Alexandre Muller
Chengdu Open - Chengdu · 3rd Round Qualifying
Sep 23
Andre Ilagan
Chengdu Open - Chengdu · 1st Round Qualifying
Sep 22
Marat Sharipov
Guangzhou Challenger · Semifinals
Sep 19
Rivalry momentum
Cumulative head-to-head lead over time
Win rate
Matches, sets and games won · Last 12 months · 63–76 matches
| Metric | Isomura | Biryukov |
|---|---|---|
| Matches won | 49% | 59% |
| Sets won | 48% | 56% |
| Games won | 48% | 51% |
Record by tier
Head-to-head record by tournament tier
| Stage | Isomura | Biryukov |
|---|---|---|
| ITF M15 | 1 | 0 |
| ATP Challenger Tour | 1 | 0 |
By surface
Head-to-head record per surface
| Surface | Isomura | Biryukov |
|---|---|---|
| Hard | 2 | 0 |
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