Rira Kosaka vs Ying ZhangPrediction, Head-to-Head Results, and Stats
Rira Kosaka and Ying Zhang have met 1 time since 2026; Ying Zhang leads 1–0. Across all meetings Kosaka has taken 1 sets to Zhang's 2. Their most recent meeting: Ying Zhang won at W15 Sapporo (2026).
Spread & Straight-Sets Form
Completed best-of-3 matches · Last 12 months
| Indicator | Kosaka | Zhang | ||
|---|---|---|---|---|
| Indicator | Rira Kosaka | Ying Zhang | ||
| Wins in straight sets | 100% | 6/6 | 85% | 11/13 |
| Wins a set when losing | 56% | 5/9 | 23% | 3/13 |
| Goes to a deciding set | 33% | 5/15 | 19% | 5/26 |
| Covers −1.5 sets as favorite | 100% | 1/1 | 62% | 8/13 |
| Covers +1.5 sets as underdog | 67% | 6/9 | 36% | 4/11 |
| Tiebreak sets won | 100% | 1/1 | 50% | 2/4 |
| Wins after taking set 1 | 75% | 6/8 | 87% | 13/15 |
| Wins 2-0 after taking set 1 | 75% | 6/8 | 73% | 11/15 |
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: 0 of 1 completed meetings ended in straight sets (Kosaka 0, Zhang 0).
Style Matchup
Playing styles and historical archetype record
Kosaka
⚙️ Grinder
Zhang
💥 Big Hitter
Matchup analysis
The 💥 Big Hitter archetype wins about 60% vs ⚙️ Grinder across 1,327 matches in our dataset: a stylistic lean toward Ying 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
Jun 25, 2026
W15 Sapporo
H Hard · 2nd Round
Prop Research
Hit rates on common betting markets · Last 90 days
| Outcome | Kosaka | Zhang | ||
|---|---|---|---|---|
| Outcome | Rira Kosaka | Ying Zhang | ||
| 1 or more | 40% | 2/5 | 67% | 4/6 |
| 3 or more | 0% | 0/5 | 0% | 0/6 |
| 5 or more | 0% | 0/5 | 0% | 0/6 |
| 10 or more | 0% | 0/5 | 0% | 0/6 |
| 15 or more | 0% | 0/5 | 0% | 0/6 |
| 20 or more | 0% | 0/5 | 0% | 0/6 |
Player ROI
Hypothetical if you put 1u on each player to win every one of their matches · Last 90 days
| Metric | Kosaka | Zhang |
|---|---|---|
| W-L | 3–5 | 4–2 |
| Avg odds | 2.96 | 1.63 |
| ROI % | -1.8% | -19.2% |
| Units P/L | -0.14u | -1.15u |
Small sample: ROI stabilizes with more matches; fewer than 10 in the window is noisy.
Common opponents
Results vs. opponents both players faced · Last 12 months
Across 2 shared opponents, both Kosaka and Zhang posted a 50% win rate.
| Opponent | Kosaka | Zhang |
|---|---|---|
| Riko Kikawada | W 61 62 | W 63 62 |
| Gaeul Jang | L 26 36 | L 36 16 |
Recent Form
Last five matches per player
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
Gaeul Jang
W15 Sapporo · Quarterfinals
Jun 26
Rira Kosaka
W15 Sapporo · 2nd Round
Jun 25
Yuka Naito
W15 Sapporo · 1st Round
Jun 24
Ayumi Miyamoto
W15 Sapporo · Quarterfinals
Jun 19
Miyu Nishiwaki
W15 Sapporo · 2nd Round
Jun 18
Riko Kikawada
W15 Sapporo · 1st Round
Jun 17
Gaeul Jang
W35 Changwon · 1st Round
May 6
Gaeul Jang
W35 Goyang · 1st Round
Apr 29
Win rate
Matches, sets and games won · Last 12 months · 15–26 matches
| Metric | Kosaka | Zhang |
|---|---|---|
| Matches won | 40% | 50% |
| Sets won | 49% | 51% |
| Games won | 50% | 49% |
Record by tier
Head-to-head record by tournament tier
| Stage | Kosaka | Zhang |
|---|---|---|
| ITF W15 | 0 | 1 |
By surface
Head-to-head record per surface
| Surface | Kosaka | Zhang |
|---|---|---|
| Hard | 0 | 1 |
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