| Season | League | Apps | Min | Goals | Assists | G+A / 90 | Rating |
|---|---|---|---|---|---|---|---|
| 2022 | J2-League | 15 | 331 | 2 | 1 | 0.82 | — |
| 2023 | J2-League | 1 | 6 | 0 | 0 | — | — |
| 2024 | J3-League | 30 | 1772 | 0 | 0 | 0 | — |
| 2025 | J3-League | 29 | 2144 | 2 | 9 | 0.46 | 6.68 |
Domestic league competitions only (SportMonks sub_type='domestic'); national-team, continental and cup competitions are excluded. Classification resolved by league id against the canonical leagues index. G+A/90 computed from minutes actually played.
Cohort: 125 J3-League midfielders, 2025, min. 450 minutes. Computed by ranking the full league corpus, not taken from any feed.
Figures computed from the GioScore season-stats database · as of 2026-07-07
Player stats against each opponent club
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Kamatamare Sanuki | 4 | 3 | 0 | 1 | 1 | 1 | 0 | 0 |
 Sagamihara | 4 | 1 | 1 | 2 | 1 | 0 | 0 | 0 |
 Ryūkyū | 4 | 2 | 1 | 1 | 2 | 1 | 1 | 0 |
 Osaka | 4 | 1 | 1 | 2 | 0 | 0 | 2 | 0 |
 Vanraure Hachinohe | 4 | 1 | 1 | 2 | 1 | 0 | 1 | 0 |
 Matsumoto Yamaga | 3 | 1 | 1 | 1 | 0 | 0 | 0 | 0 |
 Parceiro Nagano | 3 | 0 | 1 | 2 | 0 | 0 | 0 | 0 |
 Giravanz Kitakyushu | 3 | 1 | 2 | 0 | 1 | 0 | 0 | 0 |
 Zweigen Kanazawa | 3 | 1 | 2 | 0 | 0 | 2 | 1 | 0 |
 Tochigi | 3 | 1 | 1 | 1 | 0 | 1 | 0 | 0 |
 Gainare Tottori | 3 | 2 | 1 | 0 | 0 | 1 | 2 | 0 |
 Grulla | 3 | 2 | 1 | 0 | 0 | 1 | 0 | 0 |
 Azul Claro Numazu | 3 | 2 | 0 | 1 | 1 | 0 | 0 | 0 |
 Omiya Ardija | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 |
 Gifu | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 |
 V-Varen Nagasaki | 2 | 0 | 0 | 2 | 1 | 0 | 1 | 0 |
 Imabari | 2 | 0 | 0 | 2 | 1 | 0 | 0 | 0 |
 Fukushima United | 2 | 1 | 0 | 1 | 0 | 0 | 1 | 0 |
 Kagoshima United | 2 | 1 | 1 | 0 | 1 | 0 | 0 | 0 |
 Nara Club | 2 | 1 | 1 | 0 | 0 | 0 | 1 | 0 |
In the 2025 J3-League, Koji Okumura made 29 appearances (2,144 minutes), with 2 goals and 9 assists — 0.46 goal involvements per 90. Per-match rating over the season: 6.68. Among 125 J3-League midfielders with at least 450 minutes in 2025, his match rating sits in the 63rd percentile, above the median — goals rank: 26th of 125.
Since 2022 he has accumulated 4 league seasons across 3 clubs, with 4 goals and 10 assists over 4,253 minutes — 0.3 G+A per 90 career-wide.
| Club | Period | Apps | Goals | Assists | Minutes | YC | RC | Rating |
|---|---|---|---|---|---|---|---|---|
| YSCC | 2023/2024 - 2024/2025 | 31 | 8 | 3 | 2582 | — | — | — |
| Tegevajaro Miyazaki | 2024/2025 - now | 30 | 3 | 11 | 2197 | — | — | 6.68 |
| ThespaKusatsu Gunma | 2020/2021 - 2023/2024 | 19 | 2 | 1 | 522 | — | — | — |
| Total | 80 | 13 | 15 | 5301 |
| Season | Club | Apps | Goals | Assists | Minutes | YC | RC | Rating |
|---|---|---|---|---|---|---|---|---|
| 24/25 | Tegevajaro Miyazaki | 30 | 3 | — | 2197 | 5 | 0 | 6.68 |
| 23/24 | YSCC | 31 | 8 | — | 2582 | 6 | 0 | — |
| 21/22 | ThespaKusatsu Gunma | 17 | 2 | — | 500 | 3 | 0 | — |
