| Season | Team | Competition | MP | G | A | Rating | ||
|---|---|---|---|---|---|---|---|---|
| 2026 | Shonan Bellmare | J2/J3 League | 8 | 0 | 0 | 2 | 0 | – |
| 2025 | Shonan Bellmare | J1 League | 20 | 0 | 1 | 1 | 0 | 6.8 |
| 2025 | Cerezo Osaka | J1 League | 1 | 0 | 0 | 1 | 0 | 6.7 |
| 2024 | Cerezo Osaka | J1 League | 33 | 0 | 1 | 1 | 0 | 6.9 |
| 2023 | Cerezo Osaka | J1 League | 24 | 3 | 2 | 0 | 0 | 7.0 |
| 2022 | Cerezo Osaka | J1 League | 27 | 3 | 3 | 1 | 0 | 7.2 |
| 2021 | Cerezo Osaka | J1 League | 32 | 3 | 2 | 0 | 0 | 7.0 |
| 2020 | Cerezo Osaka | J1 League | 34 | 7 | 2 | 1 | 0 | 7.0 |
| 2019 | Cerezo Osaka | J1 League | 31 | 7 | 2 | 0 | 0 | 7.0 |
| 2018 | Vegalta Sendai | J1 League | 27 | 2 | 0 | 2 | 1 | 7.0 |
| 2017 | Vegalta Sendai | J1 League | 31 | 4 | 1 | 1 | 0 | 6.9 |
| 2016 | Vegalta Sendai | J1 League | 3 | 0 | 0 | 0 | 0 | 7.1 |
| 2015 | Vegalta Sendai | J1 League | 32 | 7 | 0 | 2 | 0 | – |
| 2014 | V-Varen Nagasaki | J-League Division 2 | 39 | 4 | 0 | 2 | 0 | – |
| 2013 | V-Varen Nagasaki | J-League Division 2 | 17 | 3 | 0 | 2 | 1 | – |
| 2012 | Vegalta Sendai | J-League | 1 | 0 | 0 | 0 | 0 | – |
| Total | 360 | 43 | 14 | 16 | 2 | – | ||
| Date | From | To | Type | |
|---|---|---|---|---|
| - | Cerezo Osaka | Shonan Bellmare | Transfer | |
| 01 Apr 2019 | Vegalta Sendai | Cerezo Osaka | Free agent | |
| - | V-Varen Nagasaki | Vegalta Sendai | Return from loan | |
| - | Vegalta Sendai | V-Varen Nagasaki | Loan | |
| 02 Jan 2012 | Sendai U. | Vegalta Sendai | Free agent | |
| - | Vegalta Sendai | Sendai U. | Return from loan | |
| - | Sendai U. | Vegalta Sendai | Loan | |
| 04 Jan 2008 | Vegalta Sendai | Sendai U. | Free agent |
H. Okuno career history shows progression across clubs and competitions, including club timeline, national team appearances and overall career totals.