Heimanarii Lai San vs Kazuki NishiwakiPrediction, Head-to-Head Results, and Stats
Heimanarii Lai San and Kazuki Nishiwaki have met 1 time since 2026; Kazuki Nishiwaki leads 1–0. Across all meetings San has taken 0 sets to Nishiwaki's 2. Their most recent meeting: Kazuki Nishiwaki won at M15 Harmon (2026).
Spread & Straight-Sets Form
Completed best-of-3 matches · Last 12 months
| Indicator | Lai San | Nishiwaki | ||
|---|---|---|---|---|
| Indicator | Heimanarii Lai San | Kazuki Nishiwaki | ||
| Wins in straight sets | — | 38% | 5/13 | |
| Wins a set when losing | 0% | 0/2 | 14% | 2/14 |
| Goes to a deciding set | 0% | 0/2 | 37% | 10/27 |
| Covers −1.5 sets as favorite | — | 40% | 2/5 | |
| Covers +1.5 sets as underdog | 0% | 0/1 | 42% | 5/12 |
| Tiebreak sets won | — | 44% | 4/9 | |
| Wins after taking set 1 | — | 100% | 9/9 | |
| Wins 2-0 after taking set 1 | — | 56% | 5/9 | |
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 (Lai San 0, Nishiwaki 1).
Previous meetings
1 career meeting, newest first
Jun 3, 2026
M15 Harmon
H Hard · Round of 32
Player ROI
Hypothetical if you put 1u on each player to win every one of their matches · Last 90 days
| Metric | San | Nishiwaki |
|---|---|---|
| W-L | 0–1 | 1–3 |
| Avg odds | 2.95 | 2.81 |
| ROI % | -100.0% | -68.0% |
| Units P/L | -1.00u | -2.72u |
Small sample: ROI stabilizes with more matches; fewer than 10 in the window is noisy.
Recent Form
Last five matches per player
Noritaka Koizumi
Futures 2026
Jun 14
Kazuki Nishiwaki
M15 Harmon · Round of 32
Jun 3
Hikaru Shiraishi
M15 Tokyo · 1st Round
Jul 1
Shu Muto
Futures 2026
Jun 30
Azuma Visaya
Futures 2026
Jun 14
Hayden Jones
Futures 2026
Jun 8
Reiya Komagata
Futures 2026
Jun 7
Yusuke Kusuhara
M15 Harmon · 2nd Round
Jun 4
Heimanarii Lai San
M15 Harmon · Round of 32
Jun 3
Heimanarii Lai San
M15 Harmon · 1st Round
Jun 2
Win rate
Matches, sets and games won · Last 12 months · 2–28 matches
| Metric | San | Nishiwaki |
|---|---|---|
| Matches won | 0% | 46% |
| Sets won | 0% | 43% |
| Games won | 25% | 48% |
Record by tier
Head-to-head record by tournament tier
| Stage | San | Nishiwaki |
|---|---|---|
| ITF M15 | 0 | 1 |
By surface
Head-to-head record per surface
| Surface | San | Nishiwaki |
|---|---|---|
| Hard | 0 | 1 |
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