| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:38.97 | 2025 VIR Championships | 2025-06-20 |
| 100m Breaststroke | 1:29.38 | 2025 VIR Championships | 2025-06-20 |
| 100m Breaststroke | 1:29.96 | 12 & Under Jamboree | 2025-05-10 |
| 100m Freestyle | 1:18.33 | 2025 VIR Championships | 2025-06-20 |
| 100m Freestyle | 1:19.71 | 12 & Under Jamboree | 2025-05-10 |
| 200m Breaststroke | 3:19.64 | 2025 VIR Championships | 2025-06-20 |
| 200m IM | 3:16.73 | 12 & Under Jamboree | 2025-05-10 |
| 50m Backstroke | 45.95 | 2025 VIR Championships | 2025-06-20 |
| 50m Breaststroke | 41.55 | 2025 VIR Championships | 2025-06-20 |
Bereznytskyi, Arsen's top personal bests include 100m Backstroke (1:38.97), 100m Breaststroke (1:29.38), 100m Breaststroke (1:29.96), 100m Freestyle (1:18.33), 100m Freestyle (1:19.71).
Bereznytskyi, Arsen swims for Nanaimo Riptides Swim Team.
Bereznytskyi, Arsen has competed in 2 meets.