| Season | League | Apps | Min | Goals | Assists | G+A / 90 | Rating |
|---|---|---|---|---|---|---|---|
| 2018 | K4 League | 11 | 499 | 0 | 0 | 0 | — |
| 2018 | K League 2 | 11 | 499 | 0 | 0 | 0 | — |
| 2019 | K League 2 | 31 | 2417 | 1 | 0 | 0.04 | — |
| 2020 | K League 2 | 20 | 1178 | 0 | 3 | 0.23 | 7.16 |
| 2021 | K League 2 | 15 | 1087 | 0 | 3 | 0.25 | 7.18 |
| 2022 | K League 2 | 21 | 1688 | 1 | 2 | 0.16 | 7.5 |
| 2023 | K League 2 | 18 | 1437 | 0 | 0 | 0 | 7.11 |
| 2024 | K League 2 | 24 | 1608 | 2 | 0 | 0.11 | 6.73 |
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 2026-08-06
Player stats against each opponent club
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Busan I'Park | 5 | 1 | 1 | 3 | 0 | 0 | 0 | 0 |
 Ansan Greeners | 5 | 2 | 1 | 2 | 0 | 0 | 0 | 0 |
 Gyeongnam | 5 | 2 | 3 | 0 | 0 | 0 | 0 | 0 |
 Seoul E. | 4 | 2 | 0 | 2 | 2 | 0 | 1 | 0 |
 Chungnam Asan | 4 | 1 | 2 | 1 | 0 | 0 | 1 | 0 |
 Bucheon 1995 | 3 | 0 | 1 | 2 | 0 | 0 | 0 | 0 |
 Jeonnam Dragons | 3 | 2 | 0 | 1 | 0 | 0 | 0 | 0 |
 Anyang | 3 | 1 | 0 | 2 | 0 | 1 | 0 | 0 |
 Suwon Bluewings | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 |
 Daejeon Citizen | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
 Cheongju | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 0 |
 Gimpo | 2 | 0 | 1 | 1 | 0 | 0 | 1 | 0 |
 Melbourne City | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Brisbane Roar | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Pohang Steelers | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Seongnam | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 0 |
 Busan Transportation | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Daegu | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 BG Pathum United | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Ceres Philippines | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
All of Seong-jae Jang's 2024 K League 2 output came as goals: 2 goals in 24 games (1,608 minutes) — 0.11 goal involvements per 90. Per-match rating over the season: 6.73.
At his best he averaged 7.5 in 2022, K League 2; at his worst, 6.73 in 2024. His last two rated seasons average 0.36 below his earlier career level.
