| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:19.47 | 2026 Central Region Div 2 SC Championships | 2026-02-20 |
| 100m Breaststroke | 1:31.51 | 2025 Alex Baumann Invitational | 2025-11-21 |
| 100m Butterfly | 1:15.75 | RHAC Winter Invitational 2026 | 2026-01-16 |
| 100m Butterfly | 1:13.12 | 2026 Steve Kingston Memorial | 2026-03-06 |
| 100m Freestyle | 1:13.14 | June Performance Meet 2025 | 2025-06-06 |
| 100m Freestyle | 1:06.42 | 2026 Central Region Div 2 SC Championships | 2026-02-20 |
| 100m IM | 1:21.89 | RHAC Fall Classic 2025 | 2025-10-24 |
| 200m Backstroke | 3:02.39 | RHAC Winter Invitational 2026 | 2026-01-16 |
| 200m Backstroke | 2:50.64 | 2025 Alex Baumann Invitational | 2025-11-21 |
| 200m Breaststroke | 3:15.72 | 2026 Steve Kingston Memorial | 2026-03-06 |
| 200m Butterfly | 3:05.21 | RHAC Winter Invitational 2026 | 2026-01-16 |
| 200m Butterfly | 2:48.31 | 2026 Steve Kingston Memorial | 2026-03-06 |
| 200m Freestyle | 2:32.17 | RHAC Winter Invitational 2026 | 2026-01-16 |
| 200m Freestyle | 2:25.39 | 2026 Central Region Div 2 SC Championships | 2026-02-20 |
| 200m IM | 2:53.11 | RHAC Winter Invitational 2026 | 2026-01-16 |
| 200m IM | 2:45.50 | 2026 Central Region Div 2 SC Championships | 2026-02-20 |
| 400m Freestyle | 5:30.62 | June Performance Meet 2025 | 2025-06-06 |
| 400m Freestyle | 5:11.24 | RHAC Fall Classic 2025 | 2025-10-24 |
| 400m IM | 6:07.93 | 2025 Central Region Div 1 LC Championships | 2025-06-20 |
| 400m IM | 5:42.43 | 2026 Steve Kingston Memorial | 2026-03-06 |
| 50m Backstroke | 38.67 | RHAC Fall Classic 2025 | 2025-10-24 |
| 50m Breaststroke | 43.12 | 2026 Steve Kingston Memorial | 2026-03-06 |
| 50m Butterfly | 35.31 | June Performance Meet 2025 | 2025-06-06 |
| 50m Butterfly | 32.29 | 2026 Steve Kingston Memorial | 2026-03-06 |
| 50m Freestyle | 32.14 | RHAC Winter Invitational 2026 | 2026-01-16 |
| 50m Freestyle | 30.97 | 2026 Steve Kingston Memorial | 2026-03-06 |
| 800m Freestyle | 11:06.28 | RHAC Winter Invitational 2026 | 2026-01-16 |
| 800m Freestyle | 10:45.17 | 2025 Alex Baumann Invitational | 2025-11-21 |
Hajian, Assa's top personal bests include 100m Backstroke (1:19.47), 100m Breaststroke (1:31.51), 100m Butterfly (1:15.75), 100m Butterfly (1:13.12), 100m Freestyle (1:13.14).
Hajian, Assa swims for The Richmond Hill Aquatic Club.
Hajian, Assa has competed in 12 meets.