| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:04.73 | Edmonton Open 2026 | 2026-01-30 |
| 100m Backstroke | 1:03.77 | 2025 KSC SC Invitational | 2025-11-21 |
| 100m Breaststroke | 1:17.48 | Candy Cane Invitational | 2025-11-28 |
| 100m Butterfly | 1:10.68 | Summer Provincial Championships LC | 2025-07-24 |
| 100m Butterfly | 1:05.94 | Candy Cane Invitational | 2025-11-28 |
| 100m Freestyle | 56.22 | Edmonton Open 2026 | 2026-01-30 |
| 100m Freestyle | 55.30 | Candy Cane Invitational | 2025-11-28 |
| 200m Backstroke | 2:22.47 | Edmonton Open 2026 | 2026-01-30 |
| 200m Backstroke | 2:18.93 | 2025 KSC SC Invitational | 2025-11-21 |
| 200m Freestyle | 2:07.41 | Edmonton Open 2026 | 2026-01-30 |
| 200m Freestyle | 2:10.04 | Candy Cane Invitational | 2025-11-28 |
| 200m IM | 2:24.57 | Candy Cane Invitational | 2025-11-28 |
| 400m IM | 5:31.51 | SilverRays Invitational | 2025-05-31 |
| 400m IM | 5:15.71 | Candy Cane Invitational | 2025-11-28 |
| 50m Backstroke | 30.24 | Edmonton Open 2026 | 2026-01-30 |
| 50m Backstroke | 29.56 | 2025 KSC SC Invitational | 2025-11-21 |
| 50m Breaststroke | 34.39 | Candy Cane Invitational | 2025-11-28 |
| 50m Butterfly | 28.25 | Edmonton Open 2026 | 2026-01-30 |
| 50m Butterfly | 28.24 | Candy Cane Invitational | 2025-11-28 |
| 50m Freestyle | 25.56 | Edmonton Open 2026 | 2026-01-30 |
| 50m Freestyle | 25.23 | Candy Cane Invitational | 2025-11-28 |
Dobson, Mathew's top personal bests include 100m Backstroke (1:04.73), 100m Backstroke (1:03.77), 100m Breaststroke (1:17.48), 100m Butterfly (1:10.68), 100m Butterfly (1:05.94).
Dobson, Mathew swims for Lloydminster Riptides Swim Club.
Dobson, Mathew has competed in 5 meets.