| 21 |
| 1:00.37 |
| 2026-02-08 |
| 3 | Sai Ting Adam Mak HKG · 20 | HKG | 20 | 1:00.51 | 2026-04-03 |
| 4 | To, Kenneth King Him LWS · 25 | LWS | 25 | 1:01.91 | 2018-12-02 |
| 5 | Wong, Benson DLS · 23 | DLS | 23 | 1:02.06 | 2026-04-13 |
| 6 | Yik Ki Tsui HKG · 18 | HKG | 18 | 1:02.09 | 2026-02-08 |
| 7 | Ng, Michael Yu Hin CPS · 22 | CPS | 22 | 1:02.47 | 2022-11-09 |
| 8 | Chillingworth, Adam John SCA · 25 | SCA | 25 | 1:02.48 | 2023-04-17 |
| 9 | Kwok, Ka Fai KGC · 19 | KGC | 19 | 1:02.94 | 2016-02-22 |
| 10 | Ng, Yan Kin HTA · 23 | HTA | 23 | 1:03.16 | 2021-06-02 |
| 11 | Law, Tsz Hin HTA · 21 | HTA | 21 | 1:03.36 | 2024-05-17 |
| 12 | Mok, Long Sum LWS · 17 | LWS | 17 | 1:03.49 | 2025-11-03 |
| 13 | Yang, Hin Ho Boris HJC · 20 | HJC | 20 | 1:03.58 | 2019-10-15 |
| 14 | Lau, Kin Hei James HTA · 15 | HTA | 15 | 1:03.66 | 2024-07-15 |
| 15 | Chun Lim Wan HKG · 20 | HKG | 20 | 1:03.67 | 2026-04-03 |
| 16 | Wong, Chun Yan HTA · 28 | HTA | 28 | 1:03.71 | 2015-01-09 |
| 17 | Nelson, Liam Manville HIS · 18 | HIS | 18 | 1:03.83 | 2023-04-17 |
| 18 | Yuen, Kai Ho HTA · 18 | HTA | 18 | 1:04.02 | 2021-06-02 |
| 19 | Mok, Kai Tik Marcus WTS · 21 | WTS | 21 | 1:04.11 | 2022-11-09 |
| 20 | Tsui, Hoi Tung Ronald HJC · 22 | HJC | 22 | 1:04.34 | 2015-01-09 |
| 21 | Cheung, Ryan CPS · 17 | CPS | 17 | 1:04.35 | 2024-10-02 |
| 22 | Man, Ho Him LWS · 18 | LWS | 18 | 1:04.52 | 2024-11-18 |
| 23 | Yeung, Cheuk Hay Hayden CPS · 17 | CPS | 17 | 1:04.65 | 2023-08-21 |
| 24 | Yang, Jiachuan PSC · 19 | PSC | 19 | 1:04.69 | 2018-11-05 |
| 25 | Ngai Cheung Chan HKG · 21 | HKG | 21 | 1:04.69 | 2026-04-03 |