Rira Kosaka vs Yui OhwakiPrediction, Head-to-Head Results, and Stats
Rira Kosaka and Yui Ohwaki have met 1 time since 2026; Yui Ohwaki leads 1–0. Across all meetings Kosaka has taken 1 sets to Ohwaki's 2. Their most recent meeting: Yui Ohwaki won at Maanshan 6 ITF (2026).
Spread & Straight-Sets Form
Completed best-of-3 matches · Last 12 months
| Indicator | Kosaka | Ohwaki | ||
|---|---|---|---|---|
| Indicator | Rira Kosaka | Yui Ohwaki | ||
| Wins in straight sets | 100% | 6/6 | 64% | 7/11 |
| Wins a set when losing | 56% | 5/9 | 25% | 2/8 |
| Goes to a deciding set | 33% | 5/15 | 32% | 6/19 |
| Covers −1.5 sets as favorite | 100% | 1/1 | 20% | 1/5 |
| Covers +1.5 sets as underdog | 67% | 6/9 | 33% | 2/6 |
| Tiebreak sets won | 100% | 1/1 | — | |
| Wins after taking set 1 | 75% | 6/8 | 100% | 8/8 |
| Wins 2-0 after taking set 1 | 75% | 6/8 | 88% | 7/8 |
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: 0 of 1 completed meetings ended in straight sets (Kosaka 0, Ohwaki 0).
Style Matchup
Playing styles and historical archetype record
Kosaka
⚙️ Grinder
Ohwaki
🛡️ The Spoiler
Matchup analysis
The 🛡️ The Spoiler archetype wins about 55% vs ⚙️ Grinder across 833 matches in our dataset: a stylistic lean toward Yui Ohwaki.
The Spoiler players often use strong court coverage and strong retrieval to pressure the grinder's relentless consistency.
Previous meetings
1 career meeting, newest first
Jun 30, 2026
Maanshan 6 ITF
H Hard
Prop Research
Hit rates on common betting markets · Last 90 days
| Outcome | Kosaka | Ohwaki | ||
|---|---|---|---|---|
| Outcome | Rira Kosaka | Yui Ohwaki | ||
| 1 or more | 40% | 2/5 | 25% | 1/4 |
| 3 or more | 0% | 0/5 | 0% | 0/4 |
| 5 or more | 0% | 0/5 | 0% | 0/4 |
| 10 or more | 0% | 0/5 | 0% | 0/4 |
| 15 or more | 0% | 0/5 | 0% | 0/4 |
| 20 or more | 0% | 0/5 | 0% | 0/4 |
Player ROI
Hypothetical if you put 1u on each player to win every one of their matches · Last 90 days
| Metric | Kosaka | Ohwaki |
|---|---|---|
| W-L | 3–5 | 4–5 |
| Avg odds | 2.96 | 2.77 |
| ROI % | -1.8% | -10.3% |
| Units P/L | -0.14u | -0.93u |
Small sample: ROI stabilizes with more matches; fewer than 10 in the window is noisy.
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
Xin Tong Liu
Luan 2 ITF
Jul 7
Junlu Sun
Luan 2 ITF
Jul 6
Xiaowei Li
Maanshan 6 ITF · Round of 32
Jul 1
Unknown Player
W15 Maanshan · 1st Round
Jul 1
Rira Kosaka
Maanshan 6 ITF
Jun 30
Yao Xu
Maanshan 6 ITF
Jun 29
Miho Kuramochi
W15 Sapporo · Quarterfinals
Jun 26
Stefani Webb
W15 Sapporo · 2nd Round
Jun 25
Win rate
Matches, sets and games won · Last 12 months · 15–19 matches
| Metric | Kosaka | Ohwaki |
|---|---|---|
| Matches won | 40% | 58% |
| Sets won | 49% | 55% |
| Games won | 50% | 51% |
Record by tier
Head-to-head record by tournament tier
| Stage | Kosaka | Ohwaki |
|---|---|---|
| ITF W | 0 | 1 |
By surface
Head-to-head record per surface
| Surface | Kosaka | Ohwaki |
|---|---|---|
| Hard | 0 | 1 |
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