| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Breaststroke | 1:38.70 | AMAC Fall Invitational SC | 2025-11-14 |
| 100m Freestyle | 1:10.78 | 2026 Pronghorn Classic | 2026-03-13 |
| 200m Breaststroke | 3:28.33 | AMAC Fall Invitational SC | 2025-11-14 |
| 200m Freestyle | 2:39.02 | 2026 Pronghorn Classic | 2026-03-13 |
| 400m Freestyle | 5:37.94 | 2026 Pronghorn Classic | 2026-03-13 |
| 50m Backstroke | 41.96 | 2026 Pronghorn Classic | 2026-03-13 |
| 50m Breaststroke | 45.55 | Sask Age Group Racing Series #3 South Div | 2026-03-07 |
| 50m Breaststroke | 42.44 | 2026 Pronghorn Classic | 2026-03-13 |
| 50m Butterfly | 42.17 | AMAC Fall Invitational SC | 2025-11-14 |
| 50m Freestyle | 33.38 | Sask Age Group Racing Series #3 South Div | 2026-03-07 |
| 50m Freestyle | 31.54 | 2026 Pronghorn Classic | 2026-03-13 |
Rempel, Lachlan's top personal bests include 100m Breaststroke (1:38.70), 100m Freestyle (1:10.78), 200m Breaststroke (3:28.33), 200m Freestyle (2:39.02), 400m Freestyle (5:37.94).
Rempel, Lachlan swims for Swift Current Barracudas Swim Club.
Rempel, Lachlan has competed in 4 meets.