Juliet Jia Wen Zhang vs Rira KosakaPrediction, Head-to-Head Results, and Stats
Juliet Jia Wen Zhang and Rira Kosaka have met 1 time since 2026; Juliet Jia Wen Zhang leads 1–0. Across all meetings Zhang has taken 2 sets to Kosaka's 0. Their most recent meeting: Juliet Jia Wen Zhang won at Luan 4 ITF (2026).
Spread & Straight-Sets Form
Completed best-of-3 matches · Last 12 months
| Indicator | Jia Wen Zhang | Kosaka | ||
|---|---|---|---|---|
| Indicator | Juliet Jia Wen Zhang | Rira Kosaka | ||
| Wins in straight sets | 50% | 3/6 | 100% | 6/6 |
| Wins a set when losing | 25% | 2/8 | 56% | 5/9 |
| Goes to a deciding set | 36% | 5/14 | 33% | 5/15 |
| Covers −1.5 sets as favorite | 50% | 1/2 | 100% | 1/1 |
| Covers +1.5 sets as underdog | 25% | 1/4 | 67% | 6/9 |
| Tiebreak sets won | 40% | 2/5 | 100% | 1/1 |
| Wins after taking set 1 | 80% | 4/5 | 75% | 6/8 |
| Wins 2-0 after taking set 1 | 60% | 3/5 | 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 (Jia Wen Zhang 1, Kosaka 0).
Previous meetings
1 career meeting, newest first
Jul 16, 2026
Luan 4 ITF
H Hard · Round of 16
Prop Research
Hit rates on common betting markets · Last 90 days
| Outcome | Zhang | Kosaka | ||
|---|---|---|---|---|
| Outcome | Juliet Jia Wen Zhang | Rira Kosaka | ||
| 1 or more | 0% | 0/0 | 40% | 2/5 |
| 3 or more | 0% | 0/0 | 0% | 0/5 |
| 5 or more | 0% | 0/0 | 0% | 0/5 |
| 10 or more | 0% | 0/0 | 0% | 0/5 |
| 15 or more | 0% | 0/0 | 0% | 0/5 |
| 20 or more | 0% | 0/0 | 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 | 3–2 | 3–5 |
| Avg odds | 2.17 | 2.96 |
| ROI % | +11.6% | -1.8% |
| Units P/L | +0.58u | -0.14u |
Small sample: ROI stabilizes with more matches; fewer than 10 in the window is noisy.
Recent Form
Last five matches per player
Rira Kosaka
Luan 4 ITF · Round of 16
Jul 16
Alina Trynkina
Luan 2 ITF · Round of 16
Jul 9
Eva Marie Desvignes
Luan 2 ITF · Round of 32
Jul 8
Anna Snigireva
Maanshan 6 ITF · Round of 32
Jun 30
Evialina Laskevich
Maanshan 5 ITF · Round of 32
Jun 24
Chenting Zhu
Zhengzhou ITF · Quarterfinals
Jun 19
Ekaterina Yashina
Zhengzhou ITF · Round of 16
Jun 18
Ya Yi Yang
Zhengzhou ITF · Round of 32
Jun 17
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 · 14–15 matches
| Metric | Zhang | Kosaka |
|---|---|---|
| Matches won | 43% | 40% |
| Sets won | 42% | 49% |
| Games won | 47% | 50% |
Record by tier
Head-to-head record by tournament tier
| Stage | Zhang | Kosaka |
|---|---|---|
| ITF W | 1 | 0 |
By surface
Head-to-head record per surface
| Surface | Zhang | Kosaka |
|---|---|---|
| Hard | 1 | 0 |
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