Noritaka Koizumi vs Ryota TanumaPrediction, Head-to-Head Results, and Stats
Noritaka Koizumi and Ryota Tanuma have met 1 time since 2026; Noritaka Koizumi leads 1–0. Across all meetings Koizumi has taken 2 sets to Tanuma's 0. Their most recent meeting: Noritaka Koizumi won at M25 Taipei (2026).
Spread & Straight-Sets Form
Completed best-of-3 matches · Last 12 months
| Indicator | Koizumi | Tanuma | ||
|---|---|---|---|---|
| Indicator | Noritaka Koizumi | Ryota Tanuma | ||
| Wins in straight sets | 80% | 20/25 | 76% | 16/21 |
| Wins a set when losing | 13% | 2/15 | 47% | 8/17 |
| Goes to a deciding set | 18% | 7/40 | 34% | 13/38 |
| Covers −1.5 sets as favorite | 60% | 6/10 | 33% | 7/21 |
| Covers +1.5 sets as underdog | 47% | 8/17 | 80% | 8/10 |
| Tiebreak sets won | 58% | 7/12 | 30% | 3/10 |
| Wins after taking set 1 | 95% | 21/22 | 90% | 19/21 |
| Wins 2-0 after taking set 1 | 91% | 20/22 | 76% | 16/21 |
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. Head-to-head: 1 of 1 completed meetings ended in straight sets (Koizumi 1, Tanuma 0).
Style Matchup
Playing styles and historical archetype record
Koizumi
🧱 The Wall
Tanuma
⚔️ The Gladiator
Matchup analysis
🧱 The Wall vs ⚔️ The Gladiator is historically tight (48% vs 52%, 383 matches). Neither style has a clear edge, so form, surface, and the head-to-head matter most.
Previous meetings
1 career meeting, newest first
Aug 17, 2026
M25 Taipei
H Hard · 3rd Round Qualifying
Prop Research
Hit rates on common betting markets · Last 90 days
| Outcome | Koizumi | Tanuma | ||
|---|---|---|---|---|
| Outcome | Noritaka Koizumi | Ryota Tanuma | ||
| 1 or more | 83% | 5/6 | 44% | 4/9 |
| 3 or more | 0% | 0/6 | 22% | 2/9 |
| 5 or more | 0% | 0/6 | 0% | 0/9 |
| 10 or more | 0% | 0/6 | 0% | 0/9 |
| 15 or more | 0% | 0/6 | 0% | 0/9 |
| 20 or more | 0% | 0/6 | 0% | 0/9 |
Player ROI
Hypothetical if you put 1u on each player to win every one of their matches · Last 90 days
| Metric | Koizumi | Tanuma |
|---|---|---|
| W-L | 3–4 | 4–4 |
| Avg odds | 3.09 | 2.14 |
| ROI % | +2.0% | +5.0% |
| Units P/L | +0.14u | +0.40u |
Small sample: ROI stabilizes with more matches; fewer than 10 in the window is noisy.
Common opponents
Results vs. opponents both players faced · Last 12 months
Tanuma has a higher win rate against shared opponents (86% vs Koizumi's 57%).
| Opponent | Koizumi | Tanuma |
|---|---|---|
| Taisei Ichikawa | L 46 16 | W 61 46 105 |
| Muyou Zou | W 62 61 | W 60 60 |
| Yuta Kawahashi | W | W 16 64 61 |
| Shion Yamada | W 62 64 | W 64 62 |
| Saki Tange | L | W 62 76 |
| Hiromasa Koyama | L 46 46 | L 16 64 67 |
| Sam Ryan Ziegann | W 75 62 | W 60 60 |
Recent Form
Last five matches per player
Taisei Ichikawa
Phan Thiet 3 Challenger · 1st Round Qualifying
Sep 6
Shunsuke Mitsui
M25 Urayasu · 2nd Round
Sep 3
Riku Takahata
M25 Urayasu · 1st Round
Sep 1
Kristjan Tamm
M25 Taipei · 3rd Round Qualifying
Aug 25
Lin Hao Yu
M25 Taipei · 1st Round Qualifying
Aug 23
Masamichi Imamura
M25 Taipei · 2nd Round
Aug 21
Kuan-Yi Lee
M25 Taipei · 1st Round
Aug 20
Ryota Tanuma
M25 Taipei · 3rd Round Qualifying
Aug 17
Jerry Roddick
M25 Sapporo · 2nd Round
Sep 10
Naoya Honda
M25 Sapporo · 1st Round
Sep 9
Mao Takada
M25 Sapporo · 3rd Round Qualifying
Sep 7
Choma Masuda
M25 Sapporo · 1st Round Qualifying
Sep 6
Naoki Nakagawa
M25 Urayasu · Quarterfinals
Sep 4
Hikaru Shiraishi
M25 Urayasu · 2nd Round
Sep 3
Yuta Kawahashi
M25 Urayasu · 1st Round
Sep 1
Sena Sasaki
M25 Urayasu · 3rd Round Qualifying
Aug 31
Win rate
Matches, sets and games won · Last 12 months · 38–40 matches
| Metric | Koizumi | Tanuma |
|---|---|---|
| Matches won | 63% | 55% |
| Sets won | 60% | 56% |
| Games won | 53% | 53% |
Record by tier
Head-to-head record by tournament tier
| Stage | Koizumi | Tanuma |
|---|---|---|
| ITF M25 | 1 | 0 |
By surface
Head-to-head record per surface
| Surface | Koizumi | Tanuma |
|---|---|---|
| Hard | 1 | 0 |
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