| 39.30 | 2 | ISU World Junior Speed Skating Championships 2025 | 07. - 09.02.2025 | Collalbo (ITA) |
| 39.18 | 1 | 3. Junior World Cup 2024/2025 | 01. - 02.02.2025 | Collalbo (ITA) |
| 39.45 | 1 | 106th National Winter Sports Festival | 15. - 17.01.2025 | Seoul (KOR) |
| 39.39 | 2 | Korea - Sprint Championships 2025 | 19. - 20.12.2024 | Seoul (KOR) |
| 39.31 | 1 | 2. Junior World Cup 2024/2025 | 07. - 08.12.2024 | Tomaszów Mazowiecki (POL) |
| 39.63 | 2 | 1. Junior World Cup 2024/2025 | 30.11. - 01.12.2024 | Tomaszów Mazowiecki (POL) |
| 41.08 | 2 | 2024 Seoul Mayor's Cup Competition | 21.11.2024 | Seoul (KOR) |
| 39.47 | 1 | 55th President's Cup | 08. - 10.11.2024 | Seoul (KOR) |
| 40.09 | 2 | Korea - Junior Single Distances Championships 2025 | 31.10. - 01.11.2024 | Seoul (KOR) |
| 40.09 | 2 | ISU Qualification | 31.10. - 01.11.2024 | Seoul (KOR) |
| 39.90 | 7 | Korea - Single Distances Championships 2025 | 22. - 24.10.2024 | Seoul (KOR) |
| 39.92 | 6 | 2024 Speed Skating Official Records Competition | 09. - 11.10.2024 | Seoul (KOR) |
| 39.15 | 4 | Fall Classic | 20. - 22.09.2024 | Calgary (CAN) |
| 39.27 | 4 | Fall Classic | 20. - 22.09.2024 | Calgary (CAN) |
| 39.52 | 1 | 59th National Junior High and High School Competition | 15. - 17.03.2024 | Seoul (KOR) |
| 39.69 | 1 | 59th National Ice Skating Competition | 09. - 10.03.2024 | Seoul (KOR) |
| 39.85 | 1 | Korea - National Men's and Women's Championships 2024 | 24. - 25.02.2024 | Seoul (KOR) |
| 39.55 | 2 | ISU World Junior Speed Skating Championships 2024 | 09. - 11.02.2024 | Hachinohe (JPN) |
| 39.88 | 2 | 3. Junior World Cup 2023/2024 | 03. - 04.02.2024 | Hachinohe (JPN) |
| 39.64 | 2 | Youth Olympic Games 2024 | 22. - 26.01.2024 | Gangneung (Kangnung) (KOR) |
| 39.66 | 2 | 105th National Winter Sports Festival | 11. - 13.01.2024 | Seoul (KOR) |
| 40.32 | 8 | Korea - Sprint Championships 2024 | 28. - 29.12.2023 | Seoul (KOR) |
| 39.94 | 1 | Korea - Junior Championships 2024 | 21. - 22.12.2023 | Seoul (KOR) |
| 39.33 | 1 | 2. Junior World Cup 2023/2024 | 02. - 03.12.2023 | Collalbo (ITA) |
| 40.49 | 14 | 1. Junior World Cup 2023/2024 | 25. - 26.11.2023 | Baselga di Pinè (ITA) |
| 40.21 | 1 | 2023 Seoul Metropolitan Mayor's Cup | 15.11.2023 | Seoul (KOR) |
| 39.64 | 1 | 54th President's Cup | 01. - 03.11.2023 | Seoul (KOR) |
| 39.72 | 3 | South Korean Single Distance Championships 2024 | 20. - 22.10.2023 | Seoul (KOR) |
| 39.72 | 2 | Selection Junior and Neo Senior World Cup | 20. - 22.10.2023 | Seoul (KOR) |
| 39.72 | 1 | Selection Gangwon 2024 Winter Youth Olympic Games | 20. - 22.10.2023 | Seoul (KOR) |
| 39.80 | 2 | 2023 Speed Skating Official Records Competition | 07. - 09.10.2023 | Seoul (KOR) |
| 38.96 | 5 | Fall Classic | 22. - 24.09.2023 | Calgary (CAN) |
| 39.03 | 5 | Fall Classic | 22. - 24.09.2023 | Calgary (CAN) |
| 39.23 | 1 | 58th National Junior High and High School Competition | 31.03. - 02.04.2023 | Seoul (KOR) |
| 39.56 | 2 | 58th National Ice Skating Competition | 18. - 19.03.2023 | Seoul (KOR) |
| 39.58 | 1 | Korea - National Men's and Women's Championships 2023 | 16. - 17.02.2023 | Seoul (KOR) |
| 39.58 | 1 | Korea - National Men's and Women's Championships 2023 | 16. - 17.02.2023 | Seoul (KOR) |
| 39.50 | 1 | 104th National Winter Sports Festival | 27. - 29.01.2023 | Seoul (KOR) |
| 40.01 | 1 | 53rd President's Cup | 04. - 06.11.2022 | Seoul (KOR) |
| 39.64 | 4 | 2022 Speed Skating Official Records Competition | 05. - 07.10.2022 | Seoul (KOR) |
| 39.23 | 2 | Fall Classic | 23. - 25.09.2022 | Calgary (CAN) |
| 39.66 | 8 | Fall Classic | 23. - 25.09.2022 | Calgary (CAN) |
| 39.88 | 1 | 57th National High School / Junior High School Competition | 01. - 03.04.2022 | Seoul (KOR) |
| 40.62 | 1 | 57th National Ice Skating Competition | 19. - 20.03.2022 | Seoul (KOR) |
| 40.43 | 1 | 103rd National Winter Sports Festival | 24. - 26.02.2022 | Seoul (KOR) |
| 41.22 | 1 | 2021/22 2nd Records Competition | 18.02.2022 | Seoul (KOR) |
| 40.97 | 1 | 2022 National Speed Skating Championships | 27. - 28.01.2022 | Seoul (KOR) |
| 40.00 | 1 | 52nd Presidents Cup | 11. - 13.11.2021 | Seoul (KOR) |
| 40.87 | 1 | 56th National High School And Junior High School Competition | 26. - 28.03.2021 | Seoul (KOR) |
| 41.56 | 2 | 56th Memorial Competition | 11. - 12.03.2021 | Seoul (KOR) |
| 41.79 | 2 | 51st President's Cup | 25. - 27.11.2020 | Seoul (KOR) |
| 44.45 | 4 | 19th National Youth Competition | 01.12.2019 | Seoul (KOR) |
| 44.09 | 24 | 2019 Records Competition | 14. - 16.10.2019 | Seoul (KOR) |
| 45.38 | 7 | 2019 National Speed Skating Championships | 15. - 17.01.2019 | Seoul (KOR) |
| 46.43 | 4 | 18th National Youth Competition | 11.11.2018 | Seoul (KOR) |
| 47.72 | 12 | 2018 National Speed Skating Championships | 25. - 27.01.2018 | Seoul (KOR) |
| 48.15 | 1 | Korean Youth Single Distance Championships 2018 | 03.12.2017 | Seoul (KOR) |