Jumpei Yamasaki vs Noritaka Koizumi
Updated
Tennis Gauge's model favors Jumpei Yamasaki, giving them a 65% chance to win against Noritaka Koizumi (35%). Jumpei Yamasaki leads 1-0 in their head-to-head. Yamasaki is 5-5 in their last 10, Koizumi 4-6. At -135, the odds imply 57% for Jumpei Yamasaki, below the model's 65%.
Pre-match prediction
The model makes Jumpei Yamasaki a 65% favorite. At -135 the sportsbook implies 57% for Jumpei Yamasaki, 8 points below the model's 65%.
Model minus book: +8 pts
Model minus book: -4 pts
Model estimates, not betting advice. How the numbers work · Expected value of Jumpei Yamasaki at -135 · Model track record
Player comparison
| Jumpei Yamasaki | Noritaka Koizumi | |
|---|---|---|
| Tennis Gauge rating | 6359 | 6251 |
| Tour rank | ATP #915 | ATP #1355 |
| Last 10 matches | 5-5 | 4-6 |
| Last 30 days | 3-2 | 2-1 |
| Current streak | 2 Wins | 1 Loss |
| Season record | 27-15 | 41-24 |
| UTR | 13.45 | 13.04 |
Head to head
Jumpei Yamasaki leads 1-0.
| Date | Winner | Score | Tournament |
|---|---|---|---|
| 29.10.2026 | Jumpei Yamasaki | 6-2, 6-3 | Japan Yanagawa |
Recent form
Jumpei Yamasaki, last 10
| Date | Opponent | Score | |
|---|---|---|---|
| 29.10.2026 | Noritaka Koizumi | W | 6-2, 6-3 |
| 28.10.2026 | James Connel | W | 6-4, 7-5 |
| 23.10.2026 | Chun Chien Hou | L | 6-3, 6-1 |
| 22.10.2026 | Markus Malaszszak | W | 7-5, 6-2 |
| 20.10.2026 | Yuta Tomida | W | 6-2, 3-6, 6-3 |
| 04.10.2026 | Martin Borisiouk | L | 6-4, 6-2 |
| 29.09.2026 | Max Purcell | L | 7-5, 6-3 |
| 21.07.2026 | Taisei Ichikawa | L | 6-3, 4-1 |
| 12.06.2026 | Jangjun Kim | L | 6-1, 6-4 |
| 11.06.2026 | Hayden Jones | W | 6-1, 7-6 |
Noritaka Koizumi, last 10
| Date | Opponent | Score | |
|---|---|---|---|
| 29.10.2026 | Jumpei Yamasaki | L | 6-2, 6-3 |
| 28.10.2026 | Hikaru Hieda | W | 6-3, 3-6, 6-2 |
| 22.10.2026 | Takuya Kumasaka | L | 6-4, 6-1 |
| 21.10.2026 | Riku Takahata | W | 6-1, 6-3 |
| 06.09.2026 | Taisei Ichikawa | L | 6-4, 6-1 |
| 03.09.2026 | Shunsuke Mitsui | L | 6-2, 6-2 |
| 01.09.2026 | Riku Takahata | W | 7-5, 6-3 |
| 24.08.2026 | Kristjan Tamm | L | 6-2, 7-6 |
| 23.08.2026 | Hao Yu Lin | W | 6-1, 6-2 |
| 21.08.2026 | Masamichi Imamura | L | 6-1, 6-0 |
Common opponents, last 12 months
| Opponent | Jumpei Yamasaki | Noritaka Koizumi |
|---|---|---|
| Masamichi Imamura | 1-1 L 6-0, 6-4, W 6-7, 6-4, 6-2 |
0-2 L 6-1, 6-0, L 6-1, 6-1 |
| Natsuki Yamamoto | 1-0 W 6-4, 6-7, 1-0 |
1-0 W 6-3, 6-3 |
| Ryota Tanuma | 1-0 W 7-6, 6-0 |
1-0 W 6-1, 6-3 |
| Taisei Ichikawa | 0-1 L 6-3, 4-1 |
0-1 L 6-4, 6-1 |
| Takuya Kumasaka | 0-1 L 6-2, 6-2 |
0-1 L 6-4, 6-1 |
| Uisung Park | 1-0 W 6-4 |
0-1 L 6-2, 6-3 |
| Yuga Tashiro | 1-0 W 6-2, 6-1 |
0-1 L 6-2, 6-1 |
| Yuta Tomida | 1-1 W 6-2, 3-6, 6-3, L 6-3, 6-2 |
0-2 L 7-6, 6-2, L 6-1, 6-2 |
Earlier previews of this matchup
- 2026-10-29: ATP Yanagawa (Japan), model gave Jumpei Yamasaki 65% at -135
Jumpei Yamasaki vs Noritaka Koizumi: quick answers
Who will win Jumpei Yamasaki vs Noritaka Koizumi?
Tennis Gauge's model favors Jumpei Yamasaki, giving them a 65% chance to win against Noritaka Koizumi (35%).
What is the head-to-head record between Jumpei Yamasaki and Noritaka Koizumi?
Jumpei Yamasaki leads 1-0. Their most recent meeting was on October 29, 2026, won by Jumpei Yamasaki 6-2, 6-3 at Japan Yanagawa.
Who is in better form, Jumpei Yamasaki or Noritaka Koizumi?
Jumpei Yamasaki is 5-5 in their last 10 matches (current streak: 2 Wins). Noritaka Koizumi is 4-6 (current streak: 1 Loss).
How does Tennis Gauge rate Jumpei Yamasaki and Noritaka Koizumi?
Jumpei Yamasaki is rated 6359 (ATP #915) and Noritaka Koizumi is rated 6251 (ATP #1355). Ratings update after every match and weight recent results and opponent strength.
What are the odds for Jumpei Yamasaki vs Noritaka Koizumi?
Jumpei Yamasaki is priced at -135 and Noritaka Koizumi at +158, which implies a 57% and 39% chance to win. The model rates Jumpei Yamasaki 8 points higher than the odds do (65% vs 57%), which Tennis Gauge counts as value.