| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:25.20 | 2026 Steve Kingston Memorial | 2026-03-06 |
| 100m Breaststroke | 1:43.54 | RHAC Fall Classic 2025 | 2025-10-24 |
| 100m Butterfly | 1:30.00 | 2026 Steve Kingston Memorial | 2026-03-06 |
| 100m Freestyle | 1:13.45 | 2026 Steve Kingston Memorial | 2026-03-06 |
| 200m Backstroke | 3:04.54 | 2025 Alan Swanston Classic | 2025-12-05 |
| 200m Breaststroke | 3:38.38 | 2025 Alan Swanston Classic | 2025-12-05 |
| 200m Butterfly | 3:37.27 | 2025 Alan Swanston Classic | 2025-12-05 |
| 200m Freestyle | 2:44.49 | 2025 Alan Swanston Classic | 2025-12-05 |
| 200m IM | 2:59.92 | 2026 Steve Kingston Memorial | 2026-03-06 |
| 400m Freestyle | 5:58.65 | 2025 Fall Distance Time Trial | 2025-11-15 |
| 50m Backstroke | 39.87 | 2026 Steve Kingston Memorial | 2026-03-06 |
| 50m Butterfly | 37.51 | 2026 Steve Kingston Memorial | 2026-03-06 |
| 50m Freestyle | 34.19 | 2026 Steve Kingston Memorial | 2026-03-06 |
| 800m Freestyle | 12:16.33 | 2025 Fall Distance Time Trial | 2025-11-15 |
Semeniuk, Jacy's top personal bests include 100m Backstroke (1:25.20), 100m Breaststroke (1:43.54), 100m Butterfly (1:30.00), 100m Freestyle (1:13.45), 200m Backstroke (3:04.54).
Semeniuk, Jacy swims for Newmarket Stingrays Swim Club.
Semeniuk, Jacy has competed in 7 meets.