Rira Kosaka vs Zixuan ZengPrediction, Head-to-Head Results, and Stats
Rira Kosaka and Zixuan Zeng have met 1 time since 2026; Rira Kosaka leads 1–0. Across all meetings Kosaka has taken 2 sets to Zeng's 0. Their most recent meeting: Rira Kosaka won at Luan 2 ITF (2026).
Spread & Straight-Sets Form
Completed best-of-3 matches · Last 12 months
| Indicator | Kosaka | Zeng | ||
|---|---|---|---|---|
| Indicator | Rira Kosaka | Zixuan Zeng | ||
| Wins in straight sets | 100% | 6/6 | 100% | 1/1 |
| Wins a set when losing | 56% | 5/9 | 0% | 0/4 |
| Goes to a deciding set | 33% | 5/15 | 0% | 0/5 |
| Covers −1.5 sets as favorite | 100% | 1/1 | 100% | 1/1 |
| Covers +1.5 sets as underdog | 67% | 6/9 | 0% | 0/2 |
| Tiebreak sets won | 100% | 1/1 | — | |
| Wins after taking set 1 | 75% | 6/8 | 100% | 1/1 |
| Wins 2-0 after taking set 1 | 75% | 6/8 | 100% | 1/1 |
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. Small sample — read with care. Head-to-head: 1 of 1 completed meetings ended in straight sets (Kosaka 1, Zeng 0).
Style Matchup
Playing styles and historical archetype record
Kosaka
⚙️ Grinder
Zeng
⚙️ Grinder
Matchup analysis
Both Rira Kosaka and Zixuan Zeng are ⚙️ Grinder types. Mirror matchups usually come down to execution, fitness, and surface fit, across 1,350 matches in our dataset the historical split is about even.
Previous meetings
1 career meeting, newest first
Jul 5, 2026
Luan 2 ITF
H Hard
Player ROI
Hypothetical if you put 1u on each player to win every one of their matches · Last 90 days
| Metric | Kosaka | Zeng |
|---|---|---|
| W-L | 3–5 | - |
| Avg odds | 2.96 | - |
| ROI % | -1.8% | - |
| Units P/L | -0.14u | - |
Small sample: ROI stabilizes with more matches; fewer than 10 in the window is noisy.
Travel
Last 30 days
| Metric | Kosaka | Zeng |
|---|---|---|
| Countries | — | 1 |
| Events | — | 1 |
| Matches | — | 1 |
| Distance | — | — |
| Route | — | USA |
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
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
Na Ri Kim
W15 Tianjin · 1st Round
Aug 19
Rira Kosaka
Luan 2 ITF
Jul 5
Monique Barry
Wuning 2 ITF
May 25
Maria Kalyakina
W15 Luan 8 · 2nd Round
Sep 4
Niehua Tian
W15 Luan 8 · 1st Round
Sep 2
Yu Chen Lin
W15 Luan 2 · 1st Round
Jul 23
Amy Zhu
W15 Luan 1 · 1st Round
Jul 15
Win rate
Matches, sets and games won · Last 12 months · 5–15 matches
| Metric | Kosaka | Zeng |
|---|---|---|
| Matches won | 40% | 20% |
| Sets won | 49% | 20% |
| Games won | 50% | 36% |
Record by tier
Head-to-head record by tournament tier
| Stage | Kosaka | Zeng |
|---|---|---|
| ITF W | 1 | 0 |
By surface
Head-to-head record per surface
| Surface | Kosaka | Zeng |
|---|---|---|
| Hard | 1 | 0 |
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