Top personal bests across all competitions
| # | Name | Team | Age | Time | Date |
|---|---|---|---|---|---|
| 1 | Mak, Sai Ting Adam HTA · 19 | HTA | 19 | 27.79 | 2025-08-18 |
| 2 | Cheung, Chi Kit Nicholas |
| WDS |
| 20 |
| 27.95 |
| 2025-03-24 |
| 3 | Tsui, Yik Ki PSC · 16 | PSC | 16 | 27.99 | 2024-11-18 |
| 4 | CHEUNG Chun Kwan Michael | 28.06 | 2025-01-01 |
| 5 | To, Kenneth King Him LWS · 25 | LWS | 25 | 28.23 | 2017-11-06 |
| 6 | Yang, Jiachuan PSC · 19 | PSC | 19 | 28.26 | 2018-01-16 |
| 7 | Lee, Shing Yan HTA · 22 | HTA | 22 | 28.41 | 2025-11-03 |
| 8 | Ng, Yan Kin HTA · 25 | HTA | 25 | 28.41 | 2022-11-09 |
| 9 | Law, Tsz Hin HTA · 22 | HTA | 22 | 28.47 | 2025-08-18 |
| 10 | So, Tsz Kin David KCD · 19 | KCD | 19 | 28.60 | 2025-04-14 |
| 11 | Fong, Ka Yu WDA · 21 | WDA | 21 | 28.69 | 2023-06-10 |
| 12 | Wong, Chun Yan HTA · 30 | HTA | 30 | 28.77 | 2017-11-06 |
| 13 | Zeng, Yan Kai DLS · 18 | DLS | 18 | 28.82 | 2023-08-21 |
| 14 | Man, Ho Him LWS · 19 | LWS | 19 | 28.82 | 2025-08-18 |
| 15 | Mok, Long Sum LWS · 16 | LWS | 16 | 28.85 | 2025-07-30 |
| 16 | So, Chun Hin TPS · 17 | TPS | 17 | 28.90 | 2024-11-18 |
| 17 | Yang, Hin Ho Boris HJC · 20 | HJC | 20 | 29.01 | 2019-10-15 |
| 18 | Kwok, Ka Fai KGC · 19 | KGC | 19 | 29.03 | 2016-04-18 |
| 19 | Ng, Michael Yu Hin CPS · 22 | CPS | 22 | 29.06 | 2022-11-09 |
| 20 | Luk, Arnold Bingtse SCA · 28 | SCA | 28 | 29.11 | 2025-04-14 |
| 21 | Sanborn, Byron Longsing HTA · 24 | HTA | 24 | 29.22J qQT | 2019-04-13 |
| 22 | Wan, Siu Chun TPS · 20 | TPS | 20 | 29.26 | 2024-11-18 |
| 23 | Chan, Tsz Chung Samuel SFC · 20 | SFC | 20 | 29.35 | 2024-05-17 |
| 24 | Chan, Yin Kwan SLA · 19 | SLA | 19 | 29.36 | 2017-11-06 |
| 25 | Lau, Ming Yui LWS · 19 | LWS | 19 | 29.36 | 2025-07-30 |