| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:46.32 | Fins Up 6 - Chumming for Times | 2025-05-25 |
| 100m Backstroke | 1:42.87 | LAC - Nothers Fall Invitational | 2025-11-21 |
| 100m Breaststroke | 2:04.68 | Fins Up 3 | 2026-01-18 |
| 100m Breaststroke | 1:57.76 | FinsUp 1 | 2025-10-26 |
| 100m Butterfly | 2:02.07 | Fins Up 3 | 2026-01-18 |
| 100m Butterfly | 1:59.33 | Border City Invitational 2025 | 2025-12-05 |
| 100m Freestyle | 1:28.24 | FinsUp 1 | 2025-10-26 |
| 100m IM | 1:40.80 | Blenheim Blast Seal Meet | 2025-11-30 |
| 200m Breaststroke | 4:25.02 | Fins Up 6 - Chumming for Times | 2025-05-25 |
| 200m Freestyle | 3:34.10 | Fins Up 6 - Chumming for Times | 2025-05-25 |
| 200m Freestyle | 3:29.70 | LAC - Nothers Fall Invitational | 2025-11-21 |
| 200m IM | 3:48.19 | Fins Up 3 | 2026-01-18 |
| 200m IM | 3:55.73 | Border City Invitational 2025 | 2025-12-05 |
| 50m Backstroke | 48.34 | Blenheim Blast Seal Meet | 2025-11-30 |
| 50m Breaststroke | 54.83 | CYPS SEAL League Meet | 2026-02-08 |
| 50m Butterfly | 47.59 | Blenheim Blast Seal Meet | 2025-11-30 |
| 50m Freestyle | 42.96 | Border City Invitational 2025 | 2025-12-05 |
Nichol, Dean's top personal bests include 100m Backstroke (1:46.32), 100m Backstroke (1:42.87), 100m Breaststroke (2:04.68), 100m Breaststroke (1:57.76), 100m Butterfly (2:02.07).
Nichol, Dean swims for Blenheim Blast.
Nichol, Dean has competed in 9 meets.