Junhan Zhang vs Rira KosakaPrediction, Head-to-Head Results, and Stats
Junhan Zhang and Rira Kosaka have met 1 time since 2026; Junhan Zhang leads 1–0. Across all meetings Zhang has taken 2 sets to Kosaka's 0. Their most recent meeting: Junhan Zhang won at W15 Luan (2026).
Spread & Straight-Sets Form
Completed best-of-3 matches · Last 12 months
| Indicator | Zhang | Kosaka | ||
|---|---|---|---|---|
| Indicator | Junhan Zhang | Rira Kosaka | ||
| Wins in straight sets | 58% | 11/19 | 100% | 6/6 |
| Wins a set when losing | 25% | 5/20 | 56% | 5/9 |
| Goes to a deciding set | 33% | 13/39 | 33% | 5/15 |
| Covers −1.5 sets as favorite | 42% | 8/19 | 100% | 1/1 |
| Covers +1.5 sets as underdog | 41% | 7/17 | 67% | 6/9 |
| Tiebreak sets won | 57% | 8/14 | 100% | 1/1 |
| Wins after taking set 1 | 81% | 13/16 | 75% | 6/8 |
| Wins 2-0 after taking set 1 | 69% | 11/16 | 75% | 6/8 |
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: 1 of 1 completed meetings ended in straight sets (Zhang 1, Kosaka 0).
Style Matchup
Playing styles and historical archetype record
Zhang
💥 Big Hitter
Kosaka
⚙️ Grinder
Matchup analysis
The 💥 Big Hitter archetype wins about 61% vs ⚙️ Grinder across 1,327 matches in our dataset: a stylistic lean toward Junhan Zhang.
Big Hitter players often use power groundstrokes and high winner count to pressure the grinder's relentless consistency.
Previous meetings
1 career meeting, newest first
Jul 16, 2026
W15 Luan
H Hard · 2nd Round
Prop Research
Hit rates on common betting markets · Last 90 days
| Outcome | Zhang | Kosaka | ||
|---|---|---|---|---|
| Outcome | Junhan Zhang | Rira Kosaka | ||
| 1 or more | 93% | 14/15 | 40% | 2/5 |
| 3 or more | 40% | 6/15 | 0% | 0/5 |
| 5 or more | 13% | 2/15 | 0% | 0/5 |
| 10 or more | 0% | 0/15 | 0% | 0/5 |
| 15 or more | 0% | 0/15 | 0% | 0/5 |
| 20 or more | 0% | 0/15 | 0% | 0/5 |
Player ROI
Hypothetical if you put 1u on each player to win every one of their matches · Last 90 days
| Metric | Zhang | Kosaka |
|---|---|---|
| W-L | 9–5 | 3–5 |
| Avg odds | 2.50 | 2.96 |
| ROI % | +48.4% | -1.8% |
| Units P/L | +6.78u | -0.14u |
Small sample: ROI stabilizes with more matches; fewer than 10 in the window is noisy.
Travel
Last 30 days
| Metric | Zhang | Kosaka |
|---|---|---|
| Countries | 1 | — |
| Events | 1 | — |
| Matches | 2 | — |
| Distance | — | — |
| Route | POL | — |
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.
Recent Form
Last five matches per player
Unknown Player
W15 Tianjin · Final
Aug 9
Yuhan Wang
W15 Tianjin · Quarterfinals
Aug 7
Sae Noguchi
W15 Tianjin · 2nd Round
Aug 6
Tiantian Sun
W15 Tianjin · 1st Round
Aug 4
Jiayi Wang
W15 Luan · Quarterfinals
Jul 17
Rira Kosaka
W15 Luan · 2nd Round
Jul 16
Alina Trynkina
W15 Luan · 2nd Round
Jul 9
Eva Marie Desvignes
W15 Luan · 1st Round
Jul 8
Junhan Zhang
W15 Luan · 2nd Round
Jul 16
Juliet Jia Wen Zhang
Luan 4 ITF · Round of 16
Jul 16
Liuyan An
W15 Luan · 1st Round
Jul 14
Seo Yun Choi
W15 Luan · 1st Round
Jul 8
Salakthip Ounmuang
Luan 2 ITF
Jul 7
Riko Kikawada
Luan 2 ITF
Jul 6
Zixuan Zeng
Luan 2 ITF
Jul 5
Yui Ohwaki
Maanshan 6 ITF
Jun 30
Win rate
Matches, sets and games won · Last 12 months · 15–40 matches
| Metric | Zhang | Kosaka |
|---|---|---|
| Matches won | 48% | 40% |
| Sets won | 47% | 49% |
| Games won | 49% | 50% |
Record by tier
Head-to-head record by tournament tier
| Stage | Zhang | Kosaka |
|---|---|---|
| ITF W15 | 1 | 0 |
By surface
Head-to-head record per surface
| Surface | Zhang | Kosaka |
|---|---|---|
| Hard | 1 | 0 |
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