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 | 78% | 14/18 |
| Wins a set when losing | 25% | 2/8 | 47% | 9/19 |
| Goes to a deciding set | 36% | 5/14 | 35% | 13/37 |
| Covers −1.5 sets as favorite | 50% | 1/2 | 33% | 1/3 |
| Covers +1.5 sets as underdog | 25% | 1/4 | 69% | 11/16 |
| Tiebreak sets won | 40% | 2/5 | 33% | 1/3 |
| Wins after taking set 1 | 80% | 4/5 | 84% | 16/19 |
| Wins 2-0 after taking set 1 | 60% | 3/5 | 74% | 14/19 |
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
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 | - | 3–4 |
| Avg odds | - | 4.13 |
| ROI % | - | -15.4% |
| Units P/L | - | -1.08u |
Small sample: ROI stabilizes with more matches; fewer than 10 in the window is noisy.
Travel
Last 30 days
| Metric | Zhang | Kosaka |
|---|---|---|
| Countries | — | 3 |
| Events | — | 3 |
| Matches | — | 8 |
| Distance | — | — |
| Route | — | AUT → ECU → POR |
Host country from each tournament in the last 30 days, including the current event even when a player arrived on a bye. 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
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
Haruka Kaji
W35 Wagga Wagga · 1st Round
Oct 7
Zoe Theodorakopoulos
W35 Wagga Wagga · 2nd Round Qualifying
Oct 5
Sera Nishimoto
W35 Wagga Wagga · 3rd Round Qualifying
Oct 5
Haruna Arakawa
W35 Wagga Wagga · 1st Round
Sep 30
Remika Ohashi
W35 Wagga Wagga · 3rd Round Qualifying
Sep 29
Shante Lai
W35 Wagga Wagga · 2nd Round Qualifying
Sep 28
Sayaka Ishii
W50 Nanao · 3rd Round Qualifying
Sep 22
Natsuho Arakawa
W50 Nanao · 1st Round Qualifying
Sep 21
Win rate
Matches, sets and games won · Last 12 months · 14–37 matches
| Metric | Zhang | Kosaka |
|---|---|---|
| Matches won | 43% | 49% |
| Sets won | 42% | 52% |
| 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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