| Season | League | Apps | Min | Goals | Assists | G+A / 90 | Rating |
|---|---|---|---|---|---|---|---|
| 2025 | K3 League | 8 | 89 | 0 | 0 | — | 6.35 |
| 2026 | K3 League | 2 | 57 | 0 | 0 | — | 6.33 |
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 2026-09-04
Player stats against each opponent club
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Gimhae City | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 |
 Gyeongju HNP | 2 | 0 | 2 | 0 | 0 | 0 | 0 | 0 |
 Daejeon Korail | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Busan Transportation | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Mokpo City | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Gangneung City | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Pocheon | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Yangpyeong | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Siheung Citizen | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Chuncheon | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Paju Citizen | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Yeoju Sejong | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Ulsan Citize | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 0 |
 Dangjin Citizen | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Jeonbuk Motors II | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
Jae-Seung Gu went through 8 K3 League appearances in 2025 (89 minutes) without a goal or an assist. His average match rating for that season computes to 6.35.
The record shows 2 league seasons for him (2025–2026), all with a single club.
