| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:41.03 | 2026 February Freeze Invitational | 2026-02-14 |
| 100m Breaststroke | 1:56.40 | 2026 NKB Winter Invitational Short Course | 2026-01-17 |
| 100m Freestyle | 1:29.88 | 2026 NKB Winter Invitational Short Course | 2026-01-17 |
| 100m IM | 1:50.72 | OYO Fall 2025 Short Course Invitational | 2025-11-15 |
| 200m Freestyle | 3:32.59 | 2025 NKB Fall Invitational | 2025-10-17 |
| 200m IM | 3:56.23 | 2026 February Freeze Invitational | 2026-02-14 |
| 400m Freestyle | 7:36.99 | 2026 February Freeze Invitational | 2026-02-14 |
| 50m Backstroke | 47.94 | 2026 NKB Winter Invitational Short Course | 2026-01-17 |
| 50m Breaststroke | 54.45 | 2026 February Freeze Invitational | 2026-02-14 |
| 50m Freestyle | 37.62 | 2026 NKB Winter Invitational Short Course | 2026-01-17 |
Mangan, Benjamin's top personal bests include 100m Backstroke (1:41.03), 100m Breaststroke (1:56.40), 100m Freestyle (1:29.88), 100m IM (1:50.72), 200m Freestyle (3:32.59).
Mangan, Benjamin swims for Goulbourn Sea Hawks.
Mangan, Benjamin has competed in 8 meets.