| Season | League | Apps | Min | Goals | Assists | G+A / 90 | Rating |
|---|---|---|---|---|---|---|---|
| 2020 | J2-League | 3 | 19 | 0 | 0 | — | — |
| 2021 | J2-League | 12 | 379 | 0 | 0 | 0 | — |
| 2022 | J-League | 4 | 200 | 0 | 0 | 0 | 7 |
| 2023 | J2-League | 9 | 267 | 0 | 0 | 0 | — |
| 2024 | J2-League | 21 | 1200 | 1 | 0 | 0.08 | — |
| 2025 | J2-League | 26 | 1337 | 1 | 1 | 0.13 | 6.32 |
Domestic league competitions only; G+A/90 computed from minutes actually played.
Cohort: 108 J2-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 2026-07-06
Player stats against each opponent club
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Ehime | 6 | 5 | 0 | 1 | 0 | 0 | 0 | 0 |
 JEF United | 5 | 0 | 3 | 2 | 0 | 0 | 1 | 0 |
 Omiya Ardija | 4 | 1 | 1 | 2 | 0 | 0 | 0 | 1 |
 Montedio Yamagata | 4 | 2 | 0 | 2 | 0 | 0 | 0 | 0 |
 Tokushima Vortis | 3 | 0 | 1 | 2 | 0 | 0 | 0 | 0 |
 Júbilo Iwata | 3 | 2 | 0 | 1 | 0 | 0 | 0 | 0 |
 V-Varen Nagasaki | 3 | 1 | 1 | 1 | 0 | 0 | 1 | 0 |
 Vegalta Sendai | 3 | 0 | 0 | 3 | 0 | 0 | 0 | 0 |
 Renofa Yamaguchi | 3 | 1 | 2 | 0 | 0 | 0 | 0 | 0 |
 Iwaki | 3 | 1 | 1 | 1 | 0 | 0 | 0 | 0 |
 Sagan Tosu | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 |
 Ventforet Kofu | 2 | 0 | 1 | 1 | 1 | 0 | 0 | 0 |
 Shimizu S-Pulse | 2 | 0 | 1 | 1 | 1 | 0 | 0 | 0 |
 Fagiano Okayama | 2 | 0 | 2 | 0 | 0 | 0 | 1 | 0 |
 ThespaKusatsu Gunma | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 0 |
 Imabari | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 |
 Roasso Kumamoto | 2 | 2 | 0 | 0 | 0 | 0 | 1 | 0 |
 Zweigen Kanazawa | 2 | 1 | 1 | 0 | 0 | 0 | 1 | 0 |
 Tochigi | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 0 |
 Blaublitz Akita | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 |
The 2025 J2-League line for Kazuma Nagai: 26 appearances (1,337 minutes), 1 goal, 1 assist — 0.13 goal involvements per 90. That season graded out at an average match rating of 6.32. Against 108 J2-League defenders with at least 450 minutes in 2025, his match rating places in the 10th percentile, and 32nd of 108 for goals scored.
| Club | Period | Apps | Goals | Assists | Minutes | YC | RC | Rating |
|---|---|---|---|---|---|---|---|---|
| Mito Hollyhock | 2022/2023 - 2025/2026 | 32 | 1 | 0 | 1596 | — | — | — |
| Kyoto Sanga | 2019/2020 - 2022/2023 | 28 | 0 | 0 | 1295 | — | — | 7.00 |
| Blaublitz Akita | 2024/2025 - 2025/2026 | 27 | 1 | 1 | 1394 | — | — | 6.66 |
| Total | 87 | 2 | 1 | 4285 |
| Season | Club | Apps | Goals | Assists | Minutes | YC | RC | Rating |
|---|---|---|---|---|---|---|---|---|
| 24/25 | Blaublitz Akita | 27 | 1 | — | 1394 | 5 | 1 | 6.66 |
| 23/24 | Mito Hollyhock | 22 | 1 | — | 1254 | 0 | 0 | — |
| 22/23 | Mito Hollyhock | 10 | 0 | — | 342 | 1 | 0 | — |
| 21/22 | Kyoto Sanga | 10 | 0 | — | 635 | 1 | 0 | 7.00 |
| 20/21 | Kyoto Sanga | 15 | 0 | — | 641 | 1 | 0 | — |
| 19/20 | Kyoto Sanga | 3 | 0 | — | 19 | 0 | 0 | — |
