| Season | League | Apps | Min | Goals | Assists | G+A / 90 | Rating |
|---|---|---|---|---|---|---|---|
| 2021 | J2-League | 9 | 252 | 0 | 0 | 0 | — |
| 2022 | J2-League | 27 | 615 | 2 | 1 | 0.44 | — |
| 2023 | J2-League | 2 | 14 | 0 | 0 | — | — |
| 2024 | J3-League | 35 | 2935 | 8 | 3 | 0.34 | — |
| 2025 | J3-League | 38 | 3090 | 3 | 13 | 0.47 | 6.62 |
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: 20 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 2026-07-27
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 38 appearances (3,090 minutes), with 3 goals and 13 assists — 0.47 goal involvements per 90. Per-match rating over the season: 6.62. Among 20 J3-League midfielders with at least 450 minutes in 2025, his match rating sits in the 70th percentile, above the median, with a goals rank of 5th of 20.
5 league seasons sit on his record, from 2021 to 2025 across 3 clubs.
