| CPS |
| 22 |
| 1:51.13 |
| 2015-01-09 |
| 3 | To, Kenneth King Him LWS · 25 | LWS | 25 | 1:51.54 | 2018-12-02 |
| 4 | Lo, Tsz Lam WTS · 17 | WTS | 17 | 1:52.24 | 2025-04-14 |
| 5 | Chan, Chun Hei JHC · 21 | JHC | 21 | 1:52.31 | 2018-04-16 |
| 6 | Lai, King Wo WTS · 18 | WTS | 18 | 1:52.51 | 2025-08-18 |
| 7 | Lim Nicholas, Owen Zhaoguang LRC · 20 | LRC | 20 | 1:52.56 | 2021-04-18 |
| 8 | Kwan, Nicholas TPS · 16 | TPS | 16 | 1:52.60 | 2024-07-15 |
| 9 | He, Shing Ip CPS · 17 | CPS | 17 | 1:52.62 | 2023-04-17 |
| 10 | So, Kwun Wa WDA · 17 | WDA | 17 | 1:53.09 | 2025-04-14 |
| 11 | Wang, Yi Shun CPS · 16 | CPS | 16 | 1:53.18 | 2024-11-18 |
| 12 | Liao, Xian Hao Jonathan HJC · 18 | HJC | 18 | 1:53.29 | 2017-04-18 |
| 13 | Han, Pak Kiu HTA · 16 | HTA | 16 | 1:53.37 | 2025-11-03 |
| 14 | Chen, Cheuk Fung SCA · 22 | SCA | 22 | 1:53.59 | 2019-10-15 |
| 15 | Ip, Ali TPS · 18 | TPS | 18 | 1:54.46 | 2025-11-03 |
| 16 | Wong, Ming Hong HTA · 16 | HTA | 16 | 1:54.47 | 2017-04-18 |
| 17 | Kwan, Hayden PSC · 19 | PSC | 19 | 1:54.48 | 2022-06-27 |
| 18 | Wan, Chun Lim PSC · 19 | PSC | 19 | 1:54.52 | 2025-09-07 |
| 19 | Mak, Sai Ting Adam HTA · 18 | HTA | 18 | 1:54.57 | 2024-10-02 |
| 20 | Wong, Kaden Lok Fung HTA · 16 | HTA | 16 | 1:54.74 | 2025-08-18 |
| 21 | Lau, Tsz Pok PSC · 17 | PSC | 17 | 1:54.76 | 2025-08-18 |
| 22 | Chi, Oscar DLS · 18 | DLS | 18 | 1:54.83 | 2017-11-06 |
| 23 | Lau, Chor Tik WTS · 16 | WTS | 16 | 1:54.85 | 2025-11-03 |
| 24 | Haughey, Siobhan Bernadette SCA · 23 | SCA | 23 | 1:54.89 | 2021-04-18 |
| 25 | Ng, Chun Nam Derick WTS · 20 | WTS | 20 | 1:54.93 | 2015-04-14 |