Featherweight MMA · 2000s
Aya Koyama
4–10
Aya Koyama finished 100% of 4 wins inside the distance — the 94th percentile for featherweight MMA, where the median is 65%. No reach is on record, so this page compares record rather than measurements.
What is on record
| Reach | not recorded | |
|---|---|---|
| Height | 63″ (160 cm) | |
| Stance | — | |
| Division | Featherweight MMA inferred from the listed weight, not stated as a class | |
| Peak era | 2000s | |
| Country | Japan |
Wikipedia carries no reach figure for Aya Koyama, so the reach-advantage comparison this site is built on cannot be computed. Everything below comes from the record instead.
Record
MMA record
4–10
15 bouts on record
Finish rate
100%
of wins ended inside the distance — featherweight MMA median 65%, 94th percentile
How this is worked out
- Measurements and records are read from the fighter's English Wikipedia infobox; the fight list is parsed from the article's own results table.
- Reach advantage is (reach − height) ÷ height as a percentage, so fighters of different sizes compare directly.
- Percentiles rank this fighter among the 222 featherweight MMA fighters in the dataset — chosen because it is the most specific group of at least 30 that this fighter belongs to.
Reach advantage = (reach − height) ÷ height × 100
Source: Aya Koyama on English Wikipedia (CC BY-SA 4.0), as of 2026-01-06. Percentiles and derived figures computed here.