| Season | League | Apps | Min | Goals | Assists | G+A / 90 | Rating |
|---|---|---|---|---|---|---|---|
| 2014 | K3 League | 25 | 1980 | 1 | 0 | 0.05 | — |
| 2015 | K3 League | 19 | — | 0 | 0 | — | — |
| 2018 | K League 2 | 21 | 1890 | 0 | 0 | 0 | — |
| 2019 | K League 2 | 2 | 180 | 0 | 0 | 0 | — |
| 2020 | K3 League | 18 | 1515 | 0 | 0 | 0 | — |
| 2021 | K League 2 | 1 | 90 | 0 | 0 | 0 | 6.53 |
| 2022 | K League 2 | 16 | 1408 | 0 | 0 | 0 | 7.24 |
| 2023 | K League 2 | 36 | 3240 | 0 | 1 | 0.03 | 7.23 |
| 2024 | K League 2 | 31 | 2736 | 0 | 0 | 0 | 6.8 |
| 2025 | K League 2 | 37 | 3330 | 0 | 0 | 0 | 6.16 |
| 2026 | K League 2 | 17 | 1530 | 0 | 0 | 0 | 7.06 |
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 2026-07-22
Player stats against each opponent club
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Seoul E. | 9 | 4 | 3 | 2 | 0 | 0 | 1 | 0 |
 Cheongju | 9 | 2 | 4 | 3 | 0 | 0 | 0 | 0 |
 Gyeongnam | 7 | 3 | 2 | 2 | 0 | 0 | 0 | 0 |
 Chungnam Asan | 7 | 5 | 1 | 1 | 0 | 0 | 0 | 0 |
 Ansan Greeners | 6 | 3 | 0 | 3 | 0 | 0 | 0 | 0 |
 Bucheon 1995 | 6 | 2 | 2 | 2 | 0 | 0 | 0 | 0 |
 Cheonan City | 6 | 4 | 1 | 1 | 0 | 0 | 0 | 0 |
 Suwon Bluewings | 5 | 2 | 2 | 1 | 0 | 0 | 3 | 0 |
 Jeonnam Dragons | 5 | 2 | 2 | 1 | 0 | 0 | 2 | 0 |
 Gimpo | 5 | 1 | 1 | 3 | 0 | 0 | 0 | 0 |
 Seongnam | 3 | 0 | 3 | 0 | 0 | 0 | 0 | 0 |
 Hwaseong | 3 | 1 | 1 | 1 | 0 | 0 | 0 | 0 |
 Anyang | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 |
 Yongin City | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 |
 Seoul | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Suwon | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 0 |
 Daejeon Korail | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 0 |
 Gwangju | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Daejeon Citizen | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Incheon United | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
17 appearances (1,530 minutes) was Sang-min Koo's tally in the 2026 K League 2. His average match rating for that season computes to 7.06.
11 league seasons sit on his record, from 2014 to 2026 across 3 clubs. His best-rated season remains 2022 (7.24, K League 2); his lowest was 2025 (6.16). Averaged over his last two rated seasons, he sits 0.48 below his earlier career level.
