Rira Kosaka vs Salakthip OunmuangPrediction, Head-to-Head Results, and Stats
Rira Kosaka and Salakthip Ounmuang have met 1 time since 2026; Rira Kosaka leads 1–0. Across all meetings Kosaka has taken 2 sets to Ounmuang's 0. Their most recent meeting: Rira Kosaka won at W15 Luan (2026).
Spread & Straight-Sets Form
Completed best-of-3 matches · Last 12 months
| Indicator | Kosaka | Ounmuang | ||
|---|---|---|---|---|
| Indicator | Rira Kosaka | Salakthip Ounmuang | ||
| Wins in straight sets | 78% | 14/18 | 75% | 3/4 |
| Wins a set when losing | 47% | 9/19 | 50% | 2/4 |
| Goes to a deciding set | 35% | 13/37 | 38% | 3/8 |
| Covers −1.5 sets as favorite | 33% | 1/3 | 50% | 1/2 |
| Covers +1.5 sets as underdog | 69% | 11/16 | 67% | 2/3 |
| Tiebreak sets won | 33% | 1/3 | 50% | 1/2 |
| Wins after taking set 1 | 84% | 16/19 | 67% | 4/6 |
| Wins 2-0 after taking set 1 | 74% | 14/19 | 50% | 3/6 |
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, Ounmuang 0).
Style Matchup
Playing styles and historical archetype record
Kosaka
🧱 The Wall
Ounmuang
⚙️ Grinder
Matchup analysis
The 🧱 The Wall archetype wins about 56% vs ⚙️ Grinder across 990 matches in our dataset: a stylistic lean toward Rira Kosaka.
The Wall players often use elite returner and low unforced errors to pressure the grinder's relentless consistency.
Previous meetings
1 career meeting, newest first
Jul 7, 2026
W15 Luan
H Hard · 3rd Round Qualifying
Player ROI
Hypothetical if you put 1u on each player to win every one of their matches · Last 90 days
| Metric | Kosaka | Ounmuang |
|---|---|---|
| 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 | Kosaka | Ounmuang |
|---|---|---|
| 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.
Common opponents
Results vs. opponents both players faced · Last 12 months
Across 1 shared opponent, both Kosaka and Ounmuang posted a 100% win rate.
| Opponent | Kosaka | Ounmuang |
|---|---|---|
| Mari Muto | W 62 76 | W 63 63 |
Recent Form
Last five matches per player
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
Alina Trynkina
W15 Luan · 2nd Round
Jul 16
Ru Xi Wu
W15 Luan · 1st Round
Jul 15
Jiayue Pan
W15 Luan · 3rd Round Qualifying
Jul 13
Junlu Sun
W15 Luan · 2nd Round Qualifying
Jul 12
Rira Kosaka
W15 Luan · 3rd Round Qualifying
Jul 7
Maralgoo Chogsomjav
W15 Luan · 2nd Round Qualifying
Jul 6
Yekaterina Dmitrichenko
W35 Wichita · 3rd Round Qualifying
May 26
Eva Oxford
W35 Wichita · 2nd Round Qualifying
May 25
Win rate
Matches, sets and games won · Last 12 months · 8–37 matches
| Metric | Kosaka | Ounmuang |
|---|---|---|
| Matches won | 49% | 50% |
| Sets won | 52% | 53% |
| Games won | 50% | 53% |
Record by tier
Head-to-head record by tournament tier
| Stage | Kosaka | Ounmuang |
|---|---|---|
| ITF W15 | 1 | 0 |
By surface
Head-to-head record per surface
| Surface | Kosaka | Ounmuang |
|---|---|---|
| Hard | 1 | 0 |
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