| Season | League | Apps | Min | Goals | Assists | G+A / 90 | Rating |
|---|---|---|---|---|---|---|---|
| — | J1 League | 1 | 3 | 0 | 0 | — | 0 |
| 2010 | J1 League | 3 | — | 0 | 0 | — | — |
| 2011 | J1 League | 8 | 630 | 0 | 0 | 0 | — |
| 2012/2013 | Pro League | 11 | 333 | 0 | 1 | 0.27 | — |
| 2012 | J1 League | 24 | — | 0 | 0 | — | — |
| 2013 | J1 League | 7 | — | 0 | 0 | — | — |
| 2014 | J1 League | 28 | 1710 | 12 | 0 | 0.63 | — |
| 2015 | J1 League | 20 | — | 9 | 0 | — | — |
| 2017 | J1 League | 30 | 1666 | 1 | 1 | 0.11 | 6.9 |
| 2018 | J1 League | 32 | 1628 | 5 | 5 | 0.55 | 7.04 |
| 2019 | J1 League | 33 | 2321 | 9 | 3 | 0.47 | 7.05 |
| 2020 | J1 League | 26 | 1478 | 4 | 5 | 0.55 | 6.97 |
| 2021 | J1 League | 38 | 1450 | 2 | 4 | 0.37 | 6.87 |
| 2022 | J1 League | 33 | 1923 | 4 | 4 | 0.37 | 7.06 |
| 2023 | J1 League | 33 | 2229 | 4 | 5 | 0.36 | 6.95 |
| 2024 | J1 League | 34 | 2161 | 6 | 3 | 0.37 | 7 |
| 2025 | J1 League | 36 | 1777 | 2 | 2 | 0.2 | 6.87 |
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 2026-08-17
Player stats against each opponent club
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Shonan Bellmare | 8 | 2 | 1 | 5 | 2 | 0 | 0 | 0 |
 Sanfrecce Hiroshima | 7 | 4 | 1 | 2 | 1 | 0 | 1 | 0 |
 FC Tokyo | 6 | 1 | 1 | 4 | 0 | 0 | 3 | 0 |
 Kashiwa Reysol | 5 | 3 | 0 | 2 | 1 | 0 | 0 | 0 |
 Yokohama | 5 | 3 | 2 | 0 | 1 | 0 | 0 | 0 |
 Avispa Fukuoka | 5 | 1 | 2 | 2 | 0 | 0 | 0 | 0 |
 Albirex Niigata | 5 | 2 | 1 | 2 | 1 | 0 | 2 | 0 |
 Cerezo Osaka | 5 | 1 | 3 | 1 | 0 | 0 | 0 | 0 |
 Urawa Reds | 4 | 1 | 0 | 3 | 1 | 0 | 0 | 0 |
 Tokyo Verdy | 4 | 1 | 1 | 2 | 0 | 0 | 1 | 0 |
 Yokohama F. Marinos | 4 | 3 | 0 | 1 | 0 | 0 | 0 | 0 |
 Kashima Antlers | 4 | 0 | 1 | 3 | 0 | 0 | 0 | 0 |
 Kawasaki Frontale | 4 | 1 | 0 | 3 | 1 | 2 | 1 | 0 |
 Gamba Osaka | 4 | 1 | 0 | 3 | 0 | 0 | 0 | 0 |
 Sagan Tosu | 3 | 1 | 1 | 1 | 0 | 0 | 0 | 0 |
 Lokeren | 3 | 1 | 0 | 2 | 0 | 0 | 0 | 0 |
 Ventforet Kofu | 3 | 1 | 1 | 1 | 1 | 0 | 0 | 0 |
 Consadole Sapporo | 3 | 2 | 0 | 1 | 2 | 0 | 0 | 0 |
 Kyoto Sanga | 3 | 0 | 2 | 1 | 0 | 0 | 0 | 0 |
 Tokushima Vortis | 3 | 2 | 0 | 1 | 0 | 0 | 0 | 0 |
Player stats against each opponent national team
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Tunisia | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Iraq | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Trinidad and Tobago | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Venezuela | 1 | 0 | 0 | 1 | 0 | 1 | 0 | 0 |
 Paraguay | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 El Salvador | 1 | 1 | 0 | 0 | 2 | 0 | 0 | 0 |
 Uzbekistan | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Egypt U23 | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 0 |
 Honduras U23 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Morocco U23 | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 0 |
Across 36 J1 League appearances in 2025, Kensuke Nagai contributed 2 goals plus 2 assists (1,777 minutes) — 0.2 goal involvements per 90. Per-match rating over the season: 6.87.
His best-rated season remains 2022 (7.06, J1 League); his lowest was 2021 (6.87).
