Top personal bests across all competitions
| # | Name | Team | Age | Time | Date |
|---|---|---|---|---|---|
| 1 | To, Kenneth King Him LWS · 25 | LWS | 25 | 57.82 | 2018-12-03 |
| 2 | Mak, Sai Ting Adam |
| HTA |
| 18 |
| 58.88 |
| 2025-02-10 |
| 3 | Cheung, Chi Kit Nicholas WTS · 20 | WTS | 20 | 59.13 | 2025-11-05 |
| 4 | Tsui, Yik Ki PSC · 17 | PSC | 17 | 59.77 | 2025-11-05 |
| 5 | Chillingworth, Adam John SCA · 26 | SCA | 26 | 59.98 | 2024-02-05 |
| 6 | Wong, Benson DLS · 19 | DLS | 19 | 1:00.31 | 2022-09-05 |
| 7 | Mok, Long Sum LWS · 17 | LWS | 17 | 1:00.32 | 2025-11-05 |
| 8 | Wan, Chun Lim PSC · 19 | PSC | 19 | 1:00.53 | 2025-11-05 |
| 9 | Ng, Michael Yu Hin CPS · 18 | CPS | 18 | 1:00.65 | 2019-03-08 |
| 10 | Ng, Yan Kin HTA · 23 | HTA | 23 | 1:00.84 | 2021-07-11 |
| 11 | Yang, Hin Ho Boris HJC · 20 | HJC | 20 | 1:00.85 | 2019-03-08 |
| 12 | Tsui, Hoi Tung Ronald HJC · 22 | HJC | 22 | 1:00.94 | 2015-03-17 |
| 13 | So, Chun Hin TPS · 17 | TPS | 17 | 1:01.03 | 2024-11-26 |
| 14 | Lo, Tsz Lam WTS · 17 | WTS | 17 | 1:01.25 | 2024-11-26 |
| 15 | Lee, Shing Yan HTA · 22 | HTA | 22 | 1:01.31 | 2026-02-10 |
| 16 | Whittington, Peter Harry DLS · 19 | DLS | 19 | 1:01.36 | 2023-05-29 |
| 17 | Law, Tsz Hin HTA · 22 | HTA | 22 | 1:01.53 | 2025-02-10 |
| 18 | Yuen, Kai Ho HTA · 18 | HTA | 18 | 1:01.66 | 2021-07-11 |
| 19 | Lau, Kin Hei James HTA · 16 | HTA | 16 | 1:01.69 | 2025-11-05 |
| 20 | Mok, Kai Tik Marcus WTS · 18 | WTS | 18 | 1:01.80 | 2019-06-17 |
| 21 | Man, Ho Him LWS · 20 | LWS | 20 | 1:01.92 | 2026-02-10 |
| 22 | Lau, Chor Tik WTS · 15 | WTS | 15 | 1:02.12 | 2025-02-10 |
| 23 | Ng, Chun Nam Derick WTS · 22 | WTS | 22 | 1:02.13 | 2017-03-16 |
| 24 | Kwok, Ka Fai KGC · 19 | KGC | 19 | 1:02.23 | 2016-03-14 |
| 25 | Dai, Fu Yan CPS · 15 | CPS | 15 | 1:02.32 | 2025-02-10 |