| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:44.88 | 2026 Manta Grand Prix | 2026-02-20 |
| 100m Breaststroke | 2:09.10 | 2026 Manta Grand Prix | 2026-02-20 |
| 100m Freestyle | 1:24.95 | Manitoba Open Junior Provincials | 2026-02-06 |
| 200m IM | 3:38.43 | 2026 Manta Grand Prix | 2026-02-20 |
| 25m Backstroke | 26.61 | Bison Sprint IM Invitational | 2025-10-18 |
| 25m Breaststroke | 35.21 | Bison Sprint IM Invitational | 2025-10-18 |
| 25m Butterfly | 20.75 | Bison Sprint IM Invitational | 2026-01-10 |
| 25m Freestyle | 20.94 | Bison Sprint IM Invitational | 2025-10-18 |
| 50m Backstroke | 44.77 | St. James Seals Invitational | 2026-01-23 |
| 50m Breaststroke | 58.39 | St. James Seals Invitational | 2026-01-23 |
| 50m Freestyle | 36.03 | Manitoba Open Junior Provincials | 2026-02-06 |
Masek, Lucas's top personal bests include 100m Backstroke (1:44.88), 100m Breaststroke (2:09.10), 100m Freestyle (1:24.95), 200m IM (3:38.43), 25m Backstroke (26.61).
Masek, Lucas swims for Manta Swim Club.
Masek, Lucas has competed in 8 meets.