| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Freestyle | 1:33.97 | Winter Solstice | 2025-11-29 |
| 200m Breaststroke | 4:25.03 | Winter Solstice | 2025-11-29 |
| 200m Freestyle | 3:33.27 | Norm Banfield Memorial Open Development Meet | 2025-10-03 |
| 200m IM | 3:47.91 | 2026 Sask racing Series South Division | 2025-12-06 |
| 25m Freestyle | 18.62 | 2026 Sask Racing Series #1-South Div | 2025-11-02 |
| 50m Backstroke | 46.75 | 2026 Sask racing Series South Division | 2025-12-06 |
| 50m Breaststroke | 57.61 | Winter Solstice | 2025-11-29 |
| 50m Butterfly | 50.25 | 2026 Sask racing Series South Division | 2025-12-06 |
| 50m Freestyle | 40.91 | Norm Banfield Memorial Open Development Meet | 2025-10-03 |
Montague, Lennon's top personal bests include 100m Freestyle (1:33.97), 200m Breaststroke (4:25.03), 200m Freestyle (3:33.27), 200m IM (3:47.91), 25m Freestyle (18.62).
Montague, Lennon swims for Flatland Swimming.
Montague, Lennon has competed in 6 meets.