| Season | League | Apps | Min | Goals | Assists | G+A / 90 | Rating |
|---|---|---|---|---|---|---|---|
| — | J1 League | 2 | 171 | 0 | 0 | 0 | 7.04 |
| 2024 | J1 League | 9 | 197 | 0 | 0 | 0 | 6.77 |
| 2025 | J1 League | 18 | 1574 | 0 | 0 | 0 | 7.28 |
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.
Figures computed from the GioScore season-stats database · as of 2026-08-26
Player stats against each opponent club
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Urawa Reds | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 |
 Tokyo Verdy | 2 | 0 | 2 | 0 | 0 | 0 | 0 | 0 |
 Yokohama F. Marinos | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 |
 Albirex Niigata | 2 | 0 | 2 | 0 | 0 | 0 | 0 | 0 |
 Cerezo Osaka | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 0 |
 Kawasaki Frontale | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
 Machida Zelvia | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
 Shonan Bellmare | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Yokohama | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 0 |
 Consadole Sapporo | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Avispa Fukuoka | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 FC Tokyo | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Kyoto Sanga | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 0 |
 Shimizu S-Pulse | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Kashima Antlers | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 0 |
 Vissel Kobe | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Fagiano Okayama | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 0 |
 Nagoya Grampus | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Sanfrecce Hiroshima | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Gamba Osaka | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
Player stats against each opponent national team
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Australia | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
Over 18 J1 League games in 2025 (1,574 minutes), Koki Kumasaka recorded no direct goal contributions. That season graded out at an average match rating of 7.28.
He is at his recorded peak: 2025's 7.28 tops every previous season, with 2024 (6.77) the low mark.
