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 | 72% | 23/32 | 58% | 30/52 |
| Wins a set when losing | 23% | 7/31 | 31% | 8/26 |
| Goes to a deciding set | 25% | 16/63 | 38% | 30/78 |
| Covers −1.5 sets as favorite | 52% | 13/25 | 49% | 21/43 |
| Covers +1.5 sets as underdog | 52% | 16/31 | 66% | 19/29 |
| Tiebreak sets won | 83% | 10/12 | 56% | 23/41 |
| Wins after taking set 1 | 90% | 28/31 | 86% | 44/51 |
| Wins 2-0 after taking set 1 | 74% | 23/31 | 59% | 30/51 |
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 58% vs 🛡️ The Spoiler across 321 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 | 50% | 7/14 | 100% | 19/19 |
| 3 or more | 36% | 5/14 | 100% | 19/19 |
| 5 or more | 7% | 1/14 | 100% | 19/19 |
| 10 or more | 0% | 0/14 | 63% | 12/19 |
| 15 or more | 0% | 0/14 | 21% | 4/19 |
| 20 or more | 0% | 0/14 | 5% | 1/19 |
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 | 11–6 | 13–6 |
| Avg odds | 2.07 | 1.71 |
| ROI % | +14.2% | -10.5% |
| Units P/L | +2.42u | -2.00u |
Travel
Last 30 days
| Metric | Isomura | Biryukov |
|---|---|---|
| Countries | 3 | 2 |
| Events | 3 | 4 |
| Matches | 7 | 9 |
| Distance | — | — |
| Route | KAZ → CHN → TPE | KAZ → CHN |
Host country from the tournament each match was played in, over the last 30 days. 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 (89% vs Isomura's 44%).
| Opponent | Isomura | Biryukov |
|---|---|---|
| Kasidit Samrej | L 75 06 46 | W 64 64 |
| Taisei Ichikawa | W 62 61 | W 62 63 |
| Naoto Tomizawa | W 64 63 | W 63 62 |
| Evan Zhu | W 64 63 | W 62 64 |
| 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 |
| Chase Ferguson | W 63 63 | W 76 36 62 |
| Sho Shimabukuro | L 67 46 | L 46 57 |
Recent Form
Last five matches per player
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
Miles Jones
M15 Maanshan · 1st Round
Aug 19
Kasidit Samrej
Astana Challenger · 1st Round
Aug 11
Alexander Rozin
Granby challenger
Jul 13
Qian Sun
M15 Maanshan · 1st Round
Aug 26
Kokoro Isomura
M15 Maanshan · Semifinals
Aug 22
Tianhui Zhang
M15 Maanshan · Quarterfinals
Aug 21
James Van Herzeele
M15 Maanshan · 2nd Round
Aug 20
Zihao Xia
M15 Maanshan · 1st Round
Aug 19
Jie Cui
Astana Challenger · 2nd Round
Aug 13
Taisei Ichikawa
Astana Challenger · 1st Round
Aug 11
Grigory Shebekin
M15 Astana · Final
Aug 2
Rivalry momentum
Cumulative head-to-head lead over time
Win rate
Matches, sets and games won · Last 12 months · 63–79 matches
| Metric | Isomura | Biryukov |
|---|---|---|
| Matches won | 51% | 66% |
| Sets won | 50% | 60% |
| Games won | 49% | 53% |
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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