| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Breaststroke | 1:23.38 | Western Region Short Course Championships | 2026-02-12 |
| 100m Butterfly | 1:21.25 | 2025 NYAC Cup | 2025-11-14 |
| 100m Freestyle | 1:08.00 | 2025 NYAC Cup | 2025-11-14 |
| 200m Breaststroke | 2:57.00 | Border City Invitational 2025 | 2025-12-05 |
| 200m IM | 2:49.54 | 2025 NYAC Cup | 2025-11-14 |
| 50m Backstroke | 37.96 | Border City Invitational 2025 | 2025-12-05 |
| 50m Breaststroke | 37.73 | Border City Invitational 2025 | 2025-12-05 |
| 50m Butterfly | 33.49 | 2025 NYAC Cup | 2025-11-14 |
| 50m Freestyle | 30.42 | FinsUp 1 | 2025-10-26 |
Biondo, Isabella's top personal bests include 100m Breaststroke (1:23.38), 100m Butterfly (1:21.25), 100m Freestyle (1:08.00), 200m Breaststroke (2:57.00), 200m IM (2:49.54).
Biondo, Isabella swims for Windsor Aquatic ClubWA.
Biondo, Isabella has competed in 6 meets.