| Season | League | Apps | Min | Goals | Assists | G+A / 90 | Rating |
|---|---|---|---|---|---|---|---|
| 2019 | J2-League | 16 | 1350 | 0 | 0 | 0 | 0 |
| 2022 | K League 2 | 10 | 810 | 0 | 0 | 0 | 7.22 |
| 2023 | K League 2 | 18 | 1613 | 0 | 0 | 0 | — |
| 2024 | K League 1 | 29 | 1994 | 0 | 0 | 0 | 6.7 |
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.
Cohort: 10 K League 1 goalkeepers, 2024, min. 450 minutes. Computed by ranking the full league corpus, not taken from any feed.
Figures computed from the GioScore season-stats database · as of 2026-07-09
Player stats against each opponent club
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Gimcheon Sangmu | 9 | 3 | 1 | 5 | 0 | 0 | 0 | 0 |
 Ulsan HD | 7 | 3 | 2 | 2 | 0 | 0 | 1 | 0 |
 Daegu | 7 | 2 | 3 | 2 | 0 | 0 | 2 | 0 |
 Pohang Steelers | 6 | 2 | 3 | 1 | 0 | 0 | 0 | 0 |
 Gwangju | 6 | 1 | 1 | 4 | 0 | 0 | 0 | 0 |
 Seoul | 5 | 0 | 2 | 3 | 0 | 0 | 0 | 0 |
 Jeonbuk Motors | 5 | 1 | 1 | 3 | 0 | 0 | 2 | 0 |
 Daejeon Citizen | 5 | 2 | 0 | 3 | 0 | 0 | 0 | 0 |
 Gangwon | 5 | 1 | 2 | 2 | 0 | 0 | 1 | 0 |
 Anyang | 5 | 2 | 0 | 3 | 0 | 0 | 1 | 0 |
 Jeju United | 5 | 1 | 0 | 4 | 0 | 0 | 1 | 0 |
 Incheon United | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 |
 Bucheon 1995 | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 |
 Kashiwa Reysol | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Omiya Ardija | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Ventforet Kofu | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Yokohama | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Albirex Niigata | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Fagiano Okayama | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Ansan Greeners | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
Player stats against each opponent national team
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Mexico U23 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Honduras U23 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 New Zealand U23 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Australia U23 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Jordan U23 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Saudi Arabia U23 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Iran U23 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
Jun-su Ahn logged 29 appearances (1,994 minutes) in the 2024 K League 1. Per-match rating over the season: 6.7. Against the 10 K League 1 goalkeepers who played 450+ minutes in 2024, his match rating places in the 30th percentile; on goals he ranks 1st of 10.
His league record spans 4 seasons (2019–2025) across 4 clubs. His best-rated season remains 2022 (7.22, K League 2); his lowest was 2019 (0).
| Club | Period | Apps | Goals | Assists | Minutes | YC | RC | Rating |
|---|---|---|---|---|---|---|---|---|
| Suwon | 2023/2024 - 2024/2025 | 52 | 0 | 0 | 3525 | — | — | 6.70 |
| Jeonnam Dragons | 2022/2023 - 2023/2024 | 18 | 0 | 0 | 1613 | — | — | — |
| Kagoshima United | 2017/2018 - 2019/2020 | 16 | 0 | 0 | 1350 | — | — | — |
| Busan I'Park | 2020/2021 - 2022/2023 | 10 | 0 | 0 | 810 | — | — | 7.22 |
| Gimcheon Sangmu | 2025/2026 - 2026/2027 | 0 | 0 | 0 | — | — | — | — |
| Total | 96 | 0 | 0 | 7298 |
| Season | Club | Apps | Goals | Assists | Minutes | YC | RC | Rating |
|---|---|---|---|---|---|---|---|---|
| 24/25 | Suwon | 23 | 0 | — | 1531 | 4 | 0 | — |
| 23/24 | Suwon | 29 | 0 | — | 1994 | 2 | 0 | 6.70 |
| 22/23 | Jeonnam Dragons | 18 | 0 | — | 1613 | 1 | 0 | — |
| 21/22 | Busan I'Park | 10 | 0 | — | 810 | 0 | 0 | 7.22 |
| 18/19 | Kagoshima United | 16 | 0 | — | 1350 | 1 | 0 | — |
