Hiromasa Koyama vs Luca CastelnuovoPrediction, Head-to-Head Results, and Stats
Hiromasa Koyama and Luca Castelnuovo have met 1 time since 2026; Luca Castelnuovo leads 1–0. Across all meetings Koyama has taken 1 sets to Castelnuovo's 2. Their most recent meeting: Luca Castelnuovo won at M25 Taipei (2026).
Spread & Straight-Sets Form
Completed best-of-3 matches · Last 12 months
| Indicator | Koyama | Castelnuovo | ||
|---|---|---|---|---|
| Indicator | Hiromasa Koyama | Luca Castelnuovo | ||
| Wins in straight sets | 67% | 8/12 | 81% | 29/36 |
| Wins a set when losing | 28% | 5/18 | 32% | 7/22 |
| Goes to a deciding set | 30% | 9/30 | 24% | 14/58 |
| Covers −1.5 sets as favorite | 50% | 2/4 | 67% | 18/27 |
| Covers +1.5 sets as underdog | 50% | 11/22 | 60% | 12/20 |
| Tiebreak sets won | 50% | 6/12 | 56% | 10/18 |
| Wins after taking set 1 | 73% | 11/15 | 92% | 33/36 |
| Wins 2-0 after taking set 1 | 53% | 8/15 | 81% | 29/36 |
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 1 completed meetings ended in straight sets (Koyama 0, Castelnuovo 0).
Style Matchup
Playing styles and historical archetype record
Koyama
🪃 Counterpuncher
Castelnuovo
💥 Big Hitter
Matchup analysis
🪃 Counterpuncher vs 💥 Big Hitter is historically tight (49% vs 51%, 2,363 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 27, 2026
M25 Taipei
H Hard · 2nd Round
Prop Research
Hit rates on common betting markets · Last 90 days
| Outcome | Koyama | Castelnuovo | ||
|---|---|---|---|---|
| Outcome | Hiromasa Koyama | Luca Castelnuovo | ||
| 1 or more | 70% | 7/10 | 100% | 7/7 |
| 3 or more | 10% | 1/10 | 100% | 7/7 |
| 5 or more | 0% | 0/10 | 57% | 4/7 |
| 10 or more | 0% | 0/10 | 29% | 2/7 |
| 15 or more | 0% | 0/10 | 0% | 0/7 |
| 20 or more | 0% | 0/10 | 0% | 0/7 |
Player ROI
Hypothetical if you put 1u on each player to win every one of their matches · Last 90 days
| Metric | Koyama | Castelnuovo |
|---|---|---|
| W-L | 5–6 | 2–6 |
| Avg odds | 3.54 | 3.03 |
| ROI % | +13.9% | -57.9% |
| Units P/L | +1.53u | -4.63u |
Small sample: ROI stabilizes with more matches; fewer than 10 in the window is noisy.
Travel
Last 30 days
| Metric | Koyama | Castelnuovo |
|---|---|---|
| Countries | 1 | 1 |
| Events | 2 | 1 |
| Matches | 4 | 4 |
| Distance | — | — |
| Route | TPE | TPE |
Host country from the tournament each match was played in, over the last 30 days. Route is the order of countries visited; consecutive stops in the same country are shown once. Distance is the great-circle total between host cities, shown only when every stop in the window is geocoded. A rough fatigue signal, not a headline stat.
Common opponents
Results vs. opponents both players faced · Last 12 months
Castelnuovo has a higher win rate against shared opponents (100% vs Koyama's 0%).
| Opponent | Koyama | Castelnuovo |
|---|---|---|
| Matthew Dellavedova | L 16 26 | W 64 06 62 |
Recent Form
Last five matches per player
Luca Castelnuovo
M25 Taipei · 2nd Round
Aug 27
Shinji Hazawa
M25 Taipei · 1st Round
Aug 26
Matthew Dellavedova
M25 Taipei · 2nd Round
Aug 21
Yuki Mochizuki
M25 Taipei · 1st Round
Aug 18
Matthew Dellavedova
M15 Tokyo · 1st Round
Jul 8
Yusuke Takahashi
M15 Tokyo · 1st Round
Jun 30
Max Purcell
M15 Tokyo · 1st Round
Jun 17
Hayden Jones
M15 Tokyo · 1st Round
Jun 10
Kuan-Shou Chen
M25 Taipei · Semifinals
Aug 29
Yanki Erel
M25 Taipei · Quarterfinals
Aug 28
Hiromasa Koyama
M25 Taipei · 2nd Round
Aug 27
Moerani Bouzige
M25 Taipei · 1st Round
Aug 26
Antoine Ghibaudo
Pozoblanco Challenger · 1st Round
Jul 14
Max Basing
Nottingham 3 Challenger · 2nd Round
Jul 9
Mitsuki Wei Kang Leong
Nottingham 3 Challenger · 1st Round
Jul 7
Gabriel Ghetu
Brasov challenger
Jun 28
Win rate
Matches, sets and games won · Last 12 months · 30–61 matches
| Metric | Koyama | Castelnuovo |
|---|---|---|
| Matches won | 40% | 62% |
| Sets won | 42% | 60% |
| Games won | 46% | 53% |
Record by tier
Head-to-head record by tournament tier
| Stage | Koyama | Castelnuovo |
|---|---|---|
| ITF M25 | 0 | 1 |
By surface
Head-to-head record per surface
| Surface | Koyama | Castelnuovo |
|---|---|---|
| Hard | 0 | 1 |
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