| Season | League | Apps | Min | Goals | Assists | G+A / 90 | Rating |
|---|---|---|---|---|---|---|---|
| 2018 | K League 2 | 4 | 104 | 0 | 0 | 0 | — |
| 2019 | K League 2 | 13 | 1168 | 0 | 0 | 0 | — |
| 2020 | K League 2 | 11 | 891 | 0 | 1 | 0.1 | 7.06 |
| 2021 | K League 1 | 23 | 1489 | 0 | 2 | 0.12 | 6.93 |
| 2022 | K League 1 | 30 | 2089 | 0 | 2 | 0.09 | 6.87 |
| 2023 | K League 1 | 15 | 557 | 0 | 2 | 0.32 | 6.95 |
| 2024 | K League 2 | 31 | 2783 | 1 | 1 | 0.06 | 7.02 |
| 2025 | K League 1 | 18 | 1342 | 0 | 1 | 0.07 | 6.2 |
| 2026 | K League 2 | 15 | 1290 | 0 | 4 | 0.28 | 6.62 |
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 2026-07-25
Player stats against each opponent club
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Jeju United | 8 | 2 | 1 | 5 | 0 | 0 | 3 | 0 |
 Gwangju | 7 | 2 | 1 | 4 | 0 | 0 | 0 | 0 |
 Ulsan HD | 7 | 4 | 1 | 2 | 0 | 0 | 1 | 0 |
 Anyang | 6 | 5 | 1 | 0 | 0 | 0 | 0 | 0 |
 Daegu | 5 | 1 | 3 | 1 | 0 | 0 | 0 | 0 |
 Jeonbuk Motors | 4 | 0 | 0 | 4 | 0 | 0 | 0 | 0 |
 Gimcheon Sangmu | 4 | 1 | 0 | 3 | 0 | 1 | 0 | 0 |
 Seoul | 3 | 2 | 1 | 0 | 0 | 0 | 0 | 0 |
 Pohang Steelers | 3 | 2 | 0 | 1 | 0 | 0 | 0 | 0 |
 Busan I'Park | 3 | 0 | 1 | 2 | 0 | 0 | 0 | 0 |
 Daejeon Citizen | 3 | 0 | 2 | 1 | 0 | 0 | 1 | 0 |
 Ansan Greeners | 3 | 2 | 1 | 0 | 0 | 0 | 1 | 0 |
 Seoul E. | 3 | 0 | 0 | 3 | 0 | 0 | 0 | 0 |
 Cheongju | 3 | 1 | 2 | 0 | 0 | 1 | 0 | 0 |
 Seongnam | 2 | 2 | 0 | 0 | 0 | 0 | 1 | 0 |
 Bucheon 1995 | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
 Jeonnam Dragons | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 0 |
 Chungnam Asan | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 |
 Cheonan City | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 |
 Gimpo | 2 | 0 | 2 | 0 | 0 | 0 | 0 | 0 |
In 2026, Si-young Lee's K League 2 contribution was creative only — 4 assists in 15 appearances, no goals (1,290 minutes) — 0.28 goal involvements per 90. Per-match rating over the season: 6.62.
9 league seasons sit on his record, from 2018 to 2026 across 6 clubs. His best-rated season remains 2020 (7.06, K League 2); his lowest was 2025 (6.2). The recent curve points down: 0.56 below his prior career average across the last two rated seasons.
