| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 2:06.24 | 2026 Manta Grand Prix | 2026-02-20 |
| 100m Freestyle | 1:58.24 | 2026 Manta Grand Prix | 2026-02-20 |
| 25m Backstroke | 26.66 | Bison Sprint IM Invitational | 2026-01-10 |
| 25m Breaststroke | 36.81 | Bison Sprint IM Invitational | 2026-01-10 |
| 25m Freestyle | 27.32 | Bison Sprint IM Invitational | 2026-01-10 |
| 50m Backstroke | 1:04.88 | Seals West Side Challenge | 2025-11-28 |
| 50m Breaststroke | 1:14.83 | Seals West Side Challenge | 2025-11-28 |
| 50m Freestyle | 58.95 | Bison Sprint IM Invitational | 2026-01-10 |
Romanchuk, Avalon's top personal bests include 100m Backstroke (2:06.24), 100m Freestyle (1:58.24), 25m Backstroke (26.66), 25m Breaststroke (36.81), 25m Freestyle (27.32).
Romanchuk, Avalon swims for Manta Swim Club.
Romanchuk, Avalon has competed in 4 meets.