| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:54.26 | Norm Banfield Memorial Open Development Meet | 2025-10-03 |
| 100m Breaststroke | 1:56.08 | 2026 Sask Open Short Course Junior Provincials | 2026-02-27 |
| 100m Freestyle | 1:33.68 | 2026 Sask Open Short Course Junior Provincials | 2026-02-27 |
| 100m IM | 1:49.94 | Norm Banfield Memorial Open Development Meet | 2025-10-03 |
| 200m Backstroke | 4:13.25 | 2026 Sask Racing Series #1-South Div | 2025-11-02 |
| 200m Freestyle | 3:21.02 | 2026 Sask Open Short Course Junior Provincials | 2026-02-27 |
| 200m IM | 3:58.36 | 2026 Sask racing Series South Division | 2025-12-06 |
| 25m Breaststroke | 26.64 | Regina Racing Series #2 | 2025-06-07 |
| 50m Backstroke | 50.43 | Winter Solstice | 2025-11-29 |
| 50m Breaststroke | 51.86 | 2026 Sask Open Short Course Junior Provincials | 2026-02-27 |
| 50m Butterfly | 49.54 | 2026 Sask Open Short Course Junior Provincials | 2026-02-27 |
| 50m Freestyle | 39.95 | 2026 Sask Open Short Course Junior Provincials | 2026-02-27 |
Cozine, Ellis's top personal bests include 100m Backstroke (1:54.26), 100m Breaststroke (1:56.08), 100m Freestyle (1:33.68), 100m IM (1:49.94), 200m Backstroke (4:13.25).
Cozine, Ellis swims for Regina Marlins Swim Club.
Cozine, Ellis has competed in 8 meets.