Hiromasa Koyama vs Shinji HazawaPrediction, Head-to-Head Results, and Stats
Hiromasa Koyama and Shinji Hazawa have met 2 times since 2025; they are level 1–1. Their first meeting came at M25 Sapporo 1 in 2025 on hard. On hard courts they are level 1–1. Across all meetings Koyama has taken 3 sets to Hazawa's 3. Their most recent meeting: Hiromasa Koyama won at M25 Taipei (2026).
Spread & Straight-Sets Form
Completed best-of-3 matches · Last 12 months
| Indicator | Koyama | Hazawa | ||
|---|---|---|---|---|
| Indicator | Hiromasa Koyama | Shinji Hazawa | ||
| Wins in straight sets | 73% | 24/33 | 56% | 18/32 |
| Wins a set when losing | 20% | 4/20 | 42% | 15/36 |
| Goes to a deciding set | 25% | 13/53 | 43% | 29/68 |
| Covers −1.5 sets as favorite | 63% | 10/16 | 37% | 13/35 |
| Covers +1.5 sets as underdog | 48% | 12/25 | 52% | 14/27 |
| Tiebreak sets won | 56% | 9/16 | 30% | 6/20 |
| Wins after taking set 1 | 90% | 28/31 | 63% | 19/30 |
| Wins 2-0 after taking set 1 | 77% | 24/31 | 60% | 18/30 |
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: 0 of 2 completed meetings ended in straight sets (Koyama 0, Hazawa 0).
Style Matchup
Playing styles and historical archetype record
Koyama
🧱 The Wall
Hazawa
🎾 All-Court
Matchup analysis
The 🎾 All-Court archetype wins about 58% vs 🧱 The Wall across 119 matches in our dataset: a stylistic lean toward Shinji Hazawa.
All-Court players often use tactical versatility and net approach ability to pressure the the wall's elite returner.
Previous meetings
2 career meetings, newest first
Aug 26, 2026
M25 Taipei
H Hard · 1st Round
Sep 2, 2025
M25 Sapporo 1
H Hard · 1st Round
Prop Research
Hit rates on common betting markets · Last 90 days
| Outcome | Koyama | Hazawa | ||
|---|---|---|---|---|
| Outcome | Hiromasa Koyama | Shinji Hazawa | ||
| 1 or more | 42% | 5/12 | 100% | 10/10 |
| 3 or more | 17% | 2/12 | 60% | 6/10 |
| 5 or more | 0% | 0/12 | 40% | 4/10 |
| 10 or more | 0% | 0/12 | 0% | 0/10 |
| 15 or more | 0% | 0/12 | 0% | 0/10 |
| 20 or more | 0% | 0/12 | 0% | 0/10 |
Player ROI
Hypothetical if you put 1u on each player to win every one of their matches · Last 90 days
| Metric | Koyama | Hazawa |
|---|---|---|
| W-L | 10–3 | 4–6 |
| Avg odds | 2.14 | 2.44 |
| ROI % | +30.8% | -49.0% |
| Units P/L | +4.00u | -4.90u |
Common opponents
Results vs. opponents both players faced · Last 12 months
Koyama has a higher win rate against shared opponents (86% vs Hazawa's 43%).
| Opponent | Koyama | Hazawa |
|---|---|---|
| Wishaya Trongcharoenchaikul | W 61 64 | W 36 75 63 |
| Zichen Shao | W 64 64 | W 62 64 |
| Taisei Ichikawa | W 46 76 105 | L 64 67 36 |
| Matthew Dellavedova | L 16 26 | L 46 61 67 |
| Yuki Mochizuki | W 64 64 | W 61 64 |
| Colin Sinclair | W 76 76 | L 67 64 67 |
| Hikaru Shiraishi | W 76 26 63 | L 67 36 |
Recent Form
Last five matches per player
Zhao Zhao
M15 Wuning · Final
Sep 13
Jaesung Choe
M15 Wuning · Semifinals
Sep 12
Wishaya Trongcharoenchaikul
M15 Wuning · Quarterfinals
Sep 11
Zichen Shao
M15 Wuning · 2nd Round
Sep 10
Zichen Shao
M15 Wuning · 2nd Round
Sep 10
Yue Xia
M15 Wuning · 1st Round
Sep 9
Qian Sun
M15 Wuning · 2nd Round
Sep 3
Lachlan Vickery
M15 Wuning · 1st Round
Sep 2
Hiromasa Koyama
M25 Taipei · 1st Round
Aug 26
Masamichi Imamura
M25 Taipei · 1st Round
Aug 19
Matthew Dellavedova
M15 Tianjin · Quarterfinals
Aug 14
Taiyo Yamanaka
M15 Tianjin · 2nd Round
Aug 13
Venedikt Tsirikidze
M15 Tianjin · 1st Round
Aug 12
Moerani Bouzige
M15 Brisbane · Quarterfinals
Jul 31
Daniel Jovanovski
M15 Brisbane · 2nd Round
Jul 30
Cooper Kose
M15 Brisbane · 1st Round
Jul 28
Rivalry momentum
Cumulative head-to-head lead over time
Win rate
Matches, sets and games won · Last 12 months · 53–68 matches
| Metric | Koyama | Hazawa |
|---|---|---|
| Matches won | 62% | 47% |
| Sets won | 59% | 48% |
| Games won | 53% | 50% |
Record by tier
Head-to-head record by tournament tier
| Stage | Koyama | Hazawa |
|---|---|---|
| ITF M25 | 1 | 1 |
By surface
Head-to-head record per surface
| Surface | Koyama | Hazawa |
|---|---|---|
| Hard | 1 | 1 |
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