| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:44.85 | Scar Pan Am Winter Classic | 2026-01-16 |
| 100m Backstroke | 1:43.49 | 2025 Barrie Aquafest | 2025-10-31 |
| 100m Breaststroke | 2:03.49 | MAC Rising Star #2 | 2025-05-30 |
| 100m Breaststroke | 2:01.34 | 2025 Barrie Aquafest | 2025-10-31 |
| 100m Butterfly | 2:01.63 | PICK Lisa Flood Classic 2025 | 2025-12-05 |
| 100m Freestyle | 1:30.59 | MAC Rising Star #2 | 2025-05-30 |
| 100m Freestyle | 1:27.81 | Winter Swimfest 2026 | 2026-01-24 |
| 100m IM | 1:48.68 | PICK Lisa Flood Classic 2025 | 2025-12-05 |
| 200m Freestyle | 3:18.30 | Scar Pan Am Winter Classic | 2026-01-16 |
| 200m Freestyle | 3:15.81 | Winter Swimfest 2026 | 2026-01-24 |
| 200m IM | 3:50.59 | Scar Pan Am Winter Classic | 2026-01-16 |
| 200m IM | 3:45.89 | 2025 Barrie Aquafest | 2025-10-31 |
| 400m Freestyle | 6:54.59 | Winter Swimfest 2026 | 2026-01-24 |
| 50m Backstroke | 49.48 | Scar Pan Am Winter Classic | 2026-01-16 |
| 50m Backstroke | 46.14 | Winter Swimfest 2026 | 2026-01-24 |
| 50m Breaststroke | 57.55 | Paul Corkum Memorial 2025 | 2025-10-18 |
| 50m Butterfly | 50.11 | PICK Last Gasp 2025 | 2025-06-07 |
| 50m Freestyle | 39.88 | MAC Rising Star #2 | 2025-05-30 |
| 50m Freestyle | 39.36 | 2026 Central Region Div 2 SC Championships | 2026-02-20 |
Zvezdonkin, Josephine's top personal bests include 100m Backstroke (1:44.85), 100m Backstroke (1:43.49), 100m Breaststroke (2:03.49), 100m Breaststroke (2:01.34), 100m Butterfly (2:01.63).
Zvezdonkin, Josephine swims for Pickering Swim Club Inc.
Zvezdonkin, Josephine has competed in 8 meets.