| Season | League | Apps | Min | Goals | Assists | G+A / 90 | Rating |
|---|---|---|---|---|---|---|---|
| — | J1 League | 2 | 180 | 0 | 0 | 0 | 7 |
| 2018 | J3-League | 17 | 1530 | 0 | 0 | 0 | — |
| 2019 | J3-League | 12 | 1080 | 0 | 0 | 0 | — |
| 2020 | J1 League | 25 | 2250 | 0 | 0 | 0 | 7.24 |
| 2021 | J1 League | 34 | 3060 | 0 | 0 | 0 | 7.09 |
| 2022 | J1 League | 31 | 2790 | 0 | 0 | 0 | 6.95 |
| 2023 | J1 League | 10 | 900 | 0 | 0 | 0 | 6.54 |
| 2024 | J1 League | 37 | 3311 | 0 | 0 | 0 | 7.29 |
| 2025 | J1 League | 36 | 1890 | 0 | 0 | 0 | 6.71 |
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: 11 J1 League goalkeepers, 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 2026-08-20
Player stats against each opponent club
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Avispa Fukuoka | 7 | 1 | 5 | 1 | 0 | 0 | 0 | 0 |
 Kashima Antlers | 7 | 4 | 0 | 3 | 0 | 0 | 0 | 0 |
 FC Tokyo | 6 | 5 | 0 | 1 | 0 | 0 | 0 | 0 |
 Cerezo Osaka | 5 | 4 | 1 | 0 | 0 | 0 | 0 | 0 |
 Urawa Reds | 4 | 1 | 2 | 1 | 0 | 0 | 0 | 0 |
 Kashiwa Reysol | 4 | 2 | 1 | 1 | 0 | 0 | 0 | 0 |
 Yokohama | 4 | 1 | 2 | 1 | 0 | 0 | 0 | 0 |
 Tokyo Verdy | 4 | 3 | 0 | 1 | 0 | 0 | 0 | 0 |
 Yokohama F. Marinos | 4 | 1 | 1 | 2 | 0 | 0 | 0 | 0 |
 Kyoto Sanga | 4 | 2 | 1 | 1 | 0 | 0 | 0 | 0 |
 Albirex Niigata | 4 | 2 | 1 | 1 | 0 | 0 | 0 | 0 |
 Sanfrecce Hiroshima | 4 | 0 | 0 | 4 | 0 | 0 | 0 | 0 |
 Sagan Tosu | 3 | 2 | 0 | 1 | 0 | 0 | 0 | 0 |
 Shonan Bellmare | 3 | 1 | 0 | 2 | 0 | 0 | 0 | 0 |
 Vissel Kobe | 3 | 1 | 1 | 1 | 0 | 0 | 0 | 0 |
 Kawasaki Frontale | 3 | 1 | 1 | 1 | 0 | 0 | 0 | 1 |
 Gangwon | 3 | 2 | 1 | 0 | 0 | 0 | 0 | 0 |
 Júbilo Iwata | 3 | 2 | 0 | 1 | 0 | 0 | 0 | 0 |
 Nagoya Grampus | 3 | 3 | 0 | 0 | 0 | 0 | 0 | 0 |
 Gamba Osaka | 3 | 3 | 0 | 0 | 0 | 0 | 0 | 0 |
Player stats against each opponent national team
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Oman | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 |
 China PR | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 0 |
 Australia | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
 Uruguay | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Hong Kong | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Saudi Arabia | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Korea Republic | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 United States | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Ecuador | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Bahrain | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Syria | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Myanmar | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Indonesia | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Colombia | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 England U17 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Mexico U23 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Spain U23 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 New Zealand U23 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 South Africa U23 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 France U17 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
Kosei Tani logged 36 appearances (1,890 minutes) in the 2025 J1 League. His average match rating for that season computes to 6.71. Compared with the 11 J1 League goalkeepers who played 450+ minutes in 2025, he clears the median: 55th percentile by match rating, with a goals rank of 1st of 11.
His ratings range from 6.54 (2023) up to 7.29 in 2024, J1 League.
