| Temporada | Equipo | Competición | PJ | G | A | Nota | ||
|---|---|---|---|---|---|---|---|---|
| 2026 | Tokushima | J2/J3 League | 13 | 0 | 0 | 2 | 0 | – |
| 2025 | Tokushima | J2 League | 5 | 0 | 0 | 0 | 0 | – |
| 2024 | Tokushima | J2 League | 10 | 0 | 1 | 2 | 0 | – |
| 2024 | Urawa Reds | J1 League | 11 | 0 | 2 | 0 | 0 | 6.9 |
| 2023 | Urawa Reds | J1 League | 30 | 0 | 1 | 4 | 0 | 7.2 |
| 2022 | Urawa Reds | J1 League | 26 | 1 | 5 | 2 | 1 | 7.3 |
| 2021 | Tokushima | J1 League | 37 | 3 | 3 | 3 | 0 | 7.2 |
| 2020 | Tokushima | J2 League | 42 | 6 | 0 | 2 | 0 | – |
| 2019 | Tokushima | J1 League | 1 | 0 | 0 | 0 | 0 | 6.7 |
| 2019 | Tokushima | J2 League | 41 | 6 | 0 | 7 | 0 | – |
| 2018 | Tokushima | J2 League | 39 | 6 | 0 | 5 | 0 | – |
| 2017 | Tokushima | J2 League | 41 | 4 | 0 | 4 | 0 | – |
| 2016 | Tokushima | J2 League | 39 | 1 | 0 | 3 | 0 | – |
| 2015 | Mito | J2 League | 41 | 1 | 0 | 4 | 0 | – |
| 2014 | Shonan Bellmare | J-League Division 2 | 23 | 0 | 0 | 0 | 0 | – |
| 2013 | Shonan Bellmare | J-League | 7 | 0 | 0 | 4 | 1 | – |
| Total | 406 | 28 | 12 | 42 | 2 | – | ||
| Fecha | Desde | Hacia | Tipo | |
|---|---|---|---|---|
| 07 ago 2024 | Urawa Reds | Tokushima | Transfer | |
| 02 ene 2023 | Tokushima | Urawa Reds | Transfer | |
| - | Urawa Reds | Tokushima | Return from loan | |
| 02 ene 2022 | Tokushima | Urawa Reds | Loan | |
| 02 ene 2016 | Shonan Bellmare | Tokushima | Transfer | |
| - | Mito | Shonan Bellmare | Return from loan | |
| 01 ene 2015 | Shonan Bellmare | Mito | Loan |
K. Iwao career history shows progression across clubs and competitions, including club timeline, national team appearances and overall career totals.