| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:41.94 | 2026 Joanne Malar Invitational | 2026-01-16 |
| 100m Breaststroke | 1:45.10 | 2026 Central Region Div 2 SC Championships | 2026-02-20 |
| 100m Freestyle | 1:41.55 | MAC Jingle Bell | 2025-12-12 |
| 200m Freestyle | 3:15.85 | 2026 Joanne Malar Invitational | 2026-01-16 |
| 25m Backstroke | 23.82 | MAC Rising Star #1 | 2025-11-08 |
| 25m Freestyle | 21.52 | MAC Rising Star #1 | 2025-11-08 |
| 50m Backstroke | 45.72 | 2026 Central Region Div 2 SC Championships | 2026-02-20 |
| 50m Breaststroke | 48.48 | 2026 Central Region Div 2 SC Championships | 2026-02-20 |
| 50m Butterfly | 45.89 | 2026 Central Region Div 2 SC Championships | 2026-02-20 |
| 50m Freestyle | 38.39 | 2026 Central Region Div 2 SC Championships | 2026-02-20 |
Ercoli, Arianna's top personal bests include 100m Backstroke (1:41.94), 100m Breaststroke (1:45.10), 100m Freestyle (1:41.55), 200m Freestyle (3:15.85), 25m Backstroke (23.82).
Ercoli, Arianna swims for Toronto Olympian Swim Team.
Ercoli, Arianna has competed in 6 meets.