| Season | League | Apps | Min | Goals | Assists | G+A / 90 | Rating |
|---|---|---|---|---|---|---|---|
| 2018 | J3-League | 1 | 2 | 0 | 0 | — | — |
| 2019 | J3-League | 19 | 1444 | 1 | 0 | 0.06 | — |
| 2020 | J3-League | 32 | 2767 | 2 | 0 | 0.07 | — |
| 2021 | J3-League | 8 | 711 | 0 | 0 | 0 | — |
| 2022 | J3-League | 18 | 1293 | 2 | 4 | 0.42 | — |
| 2023 | J3-League | 13 | 811 | 1 | 0 | 0.11 | — |
| 2024 | J3-League | 2 | 86 | 0 | 0 | — | — |
| 2025 | J3-League | 8 | 650 | 0 | 0 | 0 | 6.57 |
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: 18 J3-League defenders, 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 2026-07-26
Player stats against each opponent club
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Matsumoto Yamaga | 4 | 1 | 3 | 0 | 0 | 0 | 2 | 0 |
 Gifu | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 |
 Kamatamare Sanuki | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 |
 ThespaKusatsu Gunma | 2 | 2 | 0 | 0 | 1 | 0 | 0 | 0 |
 Gainare Tottori | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
 Fukushima United | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 |
 Tegevajaro Miyazaki | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 |
 Tokyo Verdy | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 0 |
 Tokushima Vortis | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Roasso Kumamoto | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Giravanz Kitakyushu | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Kataller Toyama | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Zweigen Kanazawa | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Tochigi | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Blaublitz Akita | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Sagamihara | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Tokyo U23 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 0 |
 Gamba Osaka U23 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 0 |
 Cerezo Osaka U23 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Ryūkyū | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
Over 8 J3-League games in 2025 (650 minutes), Koki Ishii recorded no direct goal contributions. GioScore's computed rating for the season averages 6.57. Measured against a cohort of 18 J3-League defenders with a minimum of 450 minutes in 2025, he sits in the 44th percentile by match rating — goals rank: 7th of 18.
8 league seasons sit on his record, from 2018 to 2025 across 2 clubs.
