| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:05.88 | 2025 LC Far Western Championship | 2025-07-31 |
| 100m Butterfly | 1:11.23 | 2025 LC Far Western Championship | 2025-07-31 |
| 100m Freestyle | 1:03.43 | 2025 LC Far Western Championship | 2025-07-31 |
| 200m Backstroke | 2:26.67 | 2025 LC Far Western Championship | 2025-07-31 |
| 200m Freestyle | 2:15.16 | 2025 LC Far Western Championship | 2025-07-31 |
| 400m Freestyle | 4:42.56 | 2025 LC Far Western Championship | 2025-07-31 |
| 400m IM | 5:21.03 | 2025 LC Far Western Championship | 2025-07-31 |
Poon, Helena's top personal bests include 100m Backstroke (1:05.88), 100m Butterfly (1:11.23), 100m Freestyle (1:03.43), 200m Backstroke (2:26.67), 200m Freestyle (2:15.16).
Poon, Helena swims for Santa Clara Swim Club.
Poon, Helena has competed in 1 meets.