| 43.04 | 5 | 61th National Junior High and High School Competition | 27. - 29.03.2026 | Seoul (KOR) |
| 43.60 | 8 | 49th Gyeonggi Provincial Superintendent of Education Cup | 02. - 03.02.2026 | Seoul (KOR) |
| 42.48 | 6 | National School Championships | 03. - 04.01.2026 | Seoul (KOR) |
| 43.41 | 6 | 61st Gyeonggi Province Chairman's Cup | 17. - 18.11.2025 | Seoul (KOR) |
| 43.48 | 26 | 2025 Speed Skating Official Record Competition | 01. - 02.10.2025 | Seoul (KOR) |
| 44.97 | 9 | 60th National Junior High and High School Competition | 28. - 30.03.2025 | Seoul (KOR) |
| 44.65 | 6 | 60th National Ice Skating Competition | 21. - 23.03.2025 | Seoul (KOR) |
| 45.30 | 4 | National School Championships | 02. - 03.01.2025 | Seoul (KOR) |
| 45.67 | 2 | 24th National Dream Competition Elementary School | 23.11.2024 | Seoul (KOR) |
| 46.70 | 31 | 2024 Speed Skating Official Records Competition | 09. - 11.10.2024 | Seoul (KOR) |
| 47.03 | 8 | Korea - National Men's and Women's Championships 2024 | 24. - 25.02.2024 | Seoul (KOR) |
| 47.79 | 3 | 23rd National Dream Competition Elementary School | 09.12.2023 | Seoul (KOR) |
| 51.45 | 33 | 2023 Speed Skating Official Records Competition | 07. - 09.10.2023 | Seoul (KOR) |
| 49.31 | 13 | Korea - National Men's and Women's Championships 2023 | 16. - 17.02.2023 | Seoul (KOR) |
| 49.31 | 13 | Korea - National Men's and Women's Championships 2023 | 16. - 17.02.2023 | Seoul (KOR) |
| 49.41 | 3 | 22nd National Dream Competition Elementary School | 11.12.2022 | Seoul (KOR) |
| 51.89 | 36 | 2022 Speed Skating Official Records Competition | 05. - 07.10.2022 | Seoul (KOR) |
| 53.08 | 12 | 2021/22 2nd Records Competition | 18.02.2022 | Seoul (KOR) |
| 56.09 | 7 | 21st National Dream Speed Competition | 04.12.2021 | Seoul (KOR) |