| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:39.68 | Goldfins Pentathlon | 2026-02-07 |
| 100m Backstroke | 1:36.47 | 2026 Sask Open Short Course Junior Provincials | 2026-02-27 |
| 100m Breaststroke | 1:48.04 | Goldfins Pentathlon | 2026-02-07 |
| 100m Breaststroke | 1:44.07 | 2026 Sask Open Short Course Junior Provincials | 2026-02-27 |
| 100m Freestyle | 1:28.12 | Goldfins Pentathlon | 2026-02-07 |
| 100m Freestyle | 1:24.76 | 2026 Sask Open Short Course Junior Provincials | 2026-02-27 |
| 200m Backstroke | 3:31.04 | 2026 Sask Open Short Course Junior Provincials | 2026-02-27 |
| 200m Breaststroke | 3:42.34 | Winter Classic | 2026-01-16 |
| 200m Breaststroke | 3:41.15 | 2026 Sask Open Short Course Junior Provincials | 2026-02-27 |
| 200m Freestyle | 3:11.18 | Winter Classic | 2026-01-16 |
| 200m Freestyle | 3:08.63 | 2026 Sask Open Short Course Junior Provincials | 2026-02-27 |
| 200m IM | 3:25.15 | Goldfins Pentathlon | 2026-02-07 |
| 200m IM | 3:26.84 | Craven SPORT Services Racing Series #3 | 2026-03-07 |
| 400m Freestyle | 6:46.22 | Winter Classic | 2026-01-16 |
| 400m Freestyle | 7:31.65 | Norm Banfield Memorial Open Development Meet | 2025-10-03 |
| 50m Backstroke | 46.47 | Winter Classic | 2026-01-16 |
| 50m Backstroke | 48.47 | 2026 Sask Open Short Course Junior Provincials | 2026-02-27 |
| 50m Breaststroke | 50.00 | Winter Classic | 2026-01-16 |
| 50m Breaststroke | 48.14 | 2026 Sask Open Short Course Junior Provincials | 2026-02-27 |
| 50m Butterfly | 50.16 | Craven SPORT Services Racing Series #3 | 2026-03-07 |
| 50m Freestyle | 38.03 | Craven SPORT Services Racing Series #3 | 2026-03-07 |
Fehr, Luka's top personal bests include 100m Backstroke (1:39.68), 100m Backstroke (1:36.47), 100m Breaststroke (1:48.04), 100m Breaststroke (1:44.07), 100m Freestyle (1:28.12).
Fehr, Luka swims for Team Gold.
Fehr, Luka has competed in 10 meets.