ATP Tour
Hiromasa Koyama
Back after 5w off#875
ATP World Ranking - 30 pts
Player Archetype
🧱 The Wall
An impenetrable defender who retrieves everything and forces opponents into errors. Rarely beats themselves, with an elite return game that makes every service game a battle.
Elite returnerLow unforced errorsExtreme consistencyPhysical endurance
Strong against
🛡️ The Spoiler53%
🏹 Frontrunner52%
Weak against
🤖 Servebot38%
🎾 All-Court42%
Player Overview
Age
18
Career-High Ranking
#869 (2026-09-21)
Career
37
Wins
23
Losses
61.7%
Win %
0
Titles
Win / Loss by Year
Career record broken down by surface
| Year | Summary | Clay | Hard | Grass |
|---|---|---|---|---|
| 2026 | 33/18 | 6/3 | 27/15 | - |
| 2025 | 3/6 | 3/3 | 0/3 | - |
| Career | 36/24 | 9/6 | 27/18 | - |
Serve & Return
Averages · Last 90 days (15 matches)
Serve
1st Serve In-
1st Serve Pts Won-
2nd Serve Pts Won-
Break Points Saved-
Aces / Match0.8
Double Faults / Match4.3
Avg 1st Serve-
Max Serve Speed-
Return
1st Return Pts Won-
2nd Return Pts Won-
Break Points Converted-
Rally
Winners / Match-
Unforced Errors / Match-
Net Pts Won %-
Total Pts Won %-
Prop Research
Career hit rates on common betting markets · 38 serve-stat matches
Hiromasa Koyama has served 3+ aces in 13.2% of career matches and 5+ aces in 2.6%.
Ace Totals
| Outcome | Hit rate | Matches |
|---|---|---|
| 1 or more | 61% | 23/38 |
| 3 or more | 13% | 5/38 |
| 5 or more | 3% | 1/38 |
| 10 or more | 0% | 0/38 |
| 15 or more | 0% | 0/38 |
| 20 or more | 0% | 0/38 |
Double Fault Totals
| Outcome | Hit rate | Matches |
|---|---|---|
| 1 or more | 97% | 37/38 |
| 2 or more | 82% | 31/38 |
| 3 or more | 63% | 24/38 |
| 5 or more | 21% | 8/38 |
| 8 or more | 3% | 1/38 |
| 10 or more | 0% | 0/38 |
Total Sets
| Outcome | Hit rate | Matches |
|---|---|---|
| 2 Sets | 75% | 44/59 |
| 3 Sets | 25% | 15/59 |
Set Betting
| Outcome | Hit rate | Matches |
|---|---|---|
| 2-0 | 46% | 27/59 |
| 2-1 | 15% | 9/59 |
| 1-2 | 10% | 6/59 |
| 0-2 | 29% | 17/59 |
Match/Set Winner
| Outcome | Hit rate | Matches |
|---|---|---|
| 1st Set Winner | 61% | 36/59 |
| 2nd Set Winner | 56% | 33/59 |
| 3rd Set Winner | 60% | 9/15 |
Recent Matches
Last 10 results
FormWWWWW
| Date | Tournament | Round | Opponent | Surface | Score | Result |
|---|---|---|---|---|---|---|
| Sep 13, 2026 | M15 Wuning | Final | Zhao Zhao | Hard | 61 63 | W |
| Sep 12, 2026 | M15 Wuning | Semifinals | Jaesung Choe | Hard | 64 75 | W |
| Sep 11, 2026 | M15 Wuning | Quarterfinals | Wishaya Trongcharoenchaikul | Hard | 61 64 | W |
| Sep 10, 2026 | M15 Wuning | 2nd Round | Zichen Shao | Hard | 64 64 | W |
| Sep 10, 2026 | M15 Wuning | 2nd Round | Zichen Shao | Hard | 64 64 | W |
| Sep 9, 2026 | M15 Wuning | 1st Round | Yue Xia | Hard | 61 64 | W |
| Sep 3, 2026 | M15 Wuning | 2nd Round | Qian Sun | Hard | 46 46 | L |
| Sep 2, 2026 | M15 Wuning | 1st Round | Lachlan Vickery | Hard | 63 62 | W |
| Aug 27, 2026 | M25 Taipei | 2nd Round | Luca Castelnuovo | Hard | 63 67 16 | L |
| Aug 26, 2026 | M25 Taipei | 1st Round | Shinji Hazawa | Hard | 67 61 62 | W |
Hiromasa Koyama FAQ
Hiromasa Koyama is ranked #875 on the ATP tour with 30 ranking points. The career-high ranking is #869, reached in 2026.
Hiromasa Koyama is from Japan.
Hiromasa Koyama is 18 years old.
Hiromasa Koyama has a career win-loss record of 37-23 (62% win rate).
Hiromasa Koyama: a career-high ranking of #869 in 2026 and 37 career wins.
Hiromasa Koyama's strongest surface by win rate is hard, with a 27-18 record (60%). Full career splits: hard 27-18 (60%) and clay 9-6 (60%).
Hiromasa Koyama has won 8 of the last 10 completed matches (80%). The current run is 6 straight wins.