HK
Hiromasa Koyama
JPN · 18 yrs
model rank
—
in the world
ATP rank
#1190
current
record
6-17
ATP-level
── the model's read
How good is he, really?
Hiromasa is the model's unrated. The model and the ATP broadly agree (ATP #1190). Recent form: 5‑10 over the last 52 weeks.
── surface Elo
By surface
Hard—
Clay—
Grass—
── vs the rated field
Scouting
overall Eloinsufficient data
serve ratinginsufficient data
return ratinginsufficient data
percentile across players with a current rating
── model Elo over time
Elo trajectory
Elo — not enough data
── ATP ranking over time · lower is better
Ranking trajectory
── nearest on the rating profile
Similar players
Not enough rating data to find similar players.
── year by year
Seasons
| year | W-L | win% | titles |
|---|---|---|---|
| 2026 | 0-3 | 0% | |
| 2025 | 5-11 | 31% | |
| 2024 | 1-3 | 25% |
── filter the record · shareable link
Splits
All 23 matches — pick filters to split the record, serve/return and log below.
── career · point data
Serve & return profile
Serve
aces1.9%
double faults3.9%
1st serve in59%
1st serve won57%
2nd serve won44%
serve pts won52%
hold %56%
Return
return pts won39%
break %28%
BP conversion45%
Under pressure
BP saved (serve)54%
BP saved95/177
BP conversion45%
Career aggregate over 19 matches with point data · hold/break derived from break-point outcomes.
── 23 matches