| Season | Team | Competition | MP | G | A | Rating | ||
|---|---|---|---|---|---|---|---|---|
| 2026 | Seoul | K League 1 | 6 | 0 | 0 | 0 | 0 | 6.6 |
| 2025 | Seoul E-Land | K League 2 | 1 | 0 | 0 | 0 | 0 | – |
| 2025 | Kyoto | J1 League | 2 | 0 | 0 | 0 | 0 | 6.6 |
| 2024 | Kyoto | J1 League | 29 | 0 | 0 | 1 | 1 | 6.7 |
| 2023 | Kyoto | J1 League | 8 | 0 | 0 | 0 | 0 | 7.1 |
| 2023 | Hokkaido Consadole Sapporo | J1 League | 8 | 0 | 0 | 0 | 0 | 6.2 |
| 2022 | Gimcheon Sangmu | K League 1 | 11 | 0 | 0 | 0 | 0 | 7.2 |
| 2021 | Gimcheon Sangmu | K League 2 | 18 | 0 | 1 | 1 | 0 | – |
| 2020 | Daegu | K League 1 | 17 | 0 | 2 | 1 | 0 | 6.8 |
| 2020 | Hokkaido Consadole Sapporo | J1 League | 1 | 0 | 0 | 0 | 0 | 5.7 |
| 2019 | Hokkaido Consadole Sapporo | J1 League | 32 | 0 | 0 | 0 | 0 | 6.9 |
| 2018 | Hokkaido Consadole Sapporo | J1 League | 34 | 0 | 0 | 1 | 0 | 7.0 |
| 2017 | Hokkaido Consadole Sapporo | J1 League | 33 | 0 | 0 | 5 | 0 | 6.7 |
| 2016 | Hokkaido Consadole Sapporo | J2 League | 33 | 0 | 0 | 1 | 0 | – |
| 2015 | Hokkaido Consadole Sapporo | J2 League | 29 | 0 | 0 | 1 | 0 | – |
| 2014 | Cerezo Osaka | J-League | 9 | 0 | 0 | 4 | 0 | – |
| Total | 271 | 0 | 3 | 15 | 1 | – | ||
| Fecha | Desde | Hacia | Tipo | |
|---|---|---|---|---|
| - | Seoul E-Land | Seoul | Transfer | |
| - | Kyoto | Seoul E-Land | Transfer | |
| 01 oct 2024 | Hokkaido Consadole Sapporo | Kyoto | Transfer | |
| - | Kyoto | Hokkaido Consadole Sapporo | Return from loan | |
| - | Hokkaido Consadole Sapporo | Kyoto | Loan | |
| 02 ene 2023 | Daegu | Hokkaido Consadole Sapporo | Free agent | |
| 09 jul 2022 | Gimcheon Sangmu | Daegu | Return from loan | |
| 03 ago 2021 | Daegu | Gimcheon Sangmu | Loan | |
| - | Hokkaido Consadole Sapporo | Daegu | Free agent | |
| - | Cerezo Osaka | Hokkaido Consadole Sapporo | Free agent | |
| 07 ene 2012 | Jaehyun | Cerezo Osaka | Free agent |
S. Gu career history shows progression across clubs and competitions, including club timeline, national team appearances and overall career totals.