ITF M15 · Round of 32 · M15 Tsukuba
Final score & match stats
Playing styles and historical archetype record
Yamasaki
🪃 Counterpuncher
Oki
🛡️ The Spoiler
Matchup analysis
The 🪃 Counterpuncher archetype wins about 57% vs 🛡️ The Spoiler across 1,775 matches in our dataset. That is a small stylistic lean for Jumpei Yamasaki here.
Counterpuncher players often use elite bp conversion and strong return game to pressure the the spoiler's strong court coverage. On Hard, that can swing with conditions.
Hypothetical if you put 1u on each player to win every one of their matches · Last 90 days
| Metric | Yamasaki | Oki |
|---|---|---|
| W-L | 1–3 | 1–2 |
| Avg odds | 2.01 | 3.85 |
| ROI % | -73.5% | +175.7% |
| Units P/L | -2.94u | +5.27u |
Small sample: ROI stabilizes with more matches; fewer than 10 in the window is noisy.
Prior meetings and scores · 2 career meetings
2
Yamasaki
0
Oki
Mar 23, 2026
M15 Tsukuba
H Hard · Round of 32
Aug 4, 2025
M15 Singapore
H Hard · Round of 32
Results vs. opponents both players faced · Last 12 months
Across 1 shared opponent, both Yamasaki and Oki posted a 0% win rate.
| Opponent | Yamasaki | Oki |
|---|---|---|
| Koki Matsuda | L 26 67 | L 76 46 67 |
Serve and return comparison · Last 90 days
| Stat | Yamasaki | Oki |
|---|---|---|
| Serve | ||
| 1st Serve In % | 61.7% | 62.3% |
| 1st Serve Pts Won % | 72.7% | 66.1% |
| 2nd Serve Pts Won % | 48.5% | 36.2% |
| Aces / Match | 6.3 | 5 |
| Double Faults / Match | 1.8 | 2.8 |
| Break Points Saved % | 55.3% | 42.3% |
| Return | ||
| 1st Return Pts Won % | 28.4% | 32.7% |
| 2nd Return Pts Won % | 48.4% | 51.3% |
| BP Converted % | 46.9% | 33.2% |
| Rally | ||
| Winners / Match | 0 | 0 |
| Unforced Errors / Match | 0 | 0 |
| Net Pts Won % | 0% | 0% |
| Total Pts Won % | 48.8% | 46.7% |
| Surface (Hard) | ||
| Hard Win % | 50% | 38% |
Last five matches per player
Matchup overview
Jumpei Yamasaki and Yuto Oki face off in the Round of 32 at M15 Tsukuba on Hard.
Jumpei Yamasaki leads 2-0 over 2 previous meetings.
Jumpei Yamasaki is 4-1 over the last 5 matches. Latest result: L vs Jangjun Kim (Jun 12).
Yuto Oki is 3-2 over the last 5 matches. Latest result: L vs Tai Sach (Jun 18).
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