| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:15.97 | 2025 Central Region Div 1 LC Championships | 2025-06-20 |
| 100m Breaststroke | 1:25.15 | 2025 Central Region Div 1 LC Championships | 2025-06-20 |
| 100m Breaststroke | 1:19.05 | 2025 MMST Dash 4 Cash | 2025-10-18 |
| 100m Butterfly | 1:15.63 | Scar Pan Am Winter Classic | 2026-01-16 |
| 100m Freestyle | 1:04.81 | 2025 Central Region Div 1 LC Championships | 2025-06-20 |
| 100m Freestyle | 1:02.90 | BAC SC Fall Invitational | 2025-11-07 |
| 100m IM | 1:17.11 | 2025 MMST Club Champs | 2025-05-31 |
| 200m Backstroke | 2:33.64 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 200m Breaststroke | 3:05.96 | 2026 MMST GTA Skins | 2026-02-13 |
| 200m Breaststroke | 2:50.72 | BAC SC Fall Invitational | 2025-11-07 |
| 200m Butterfly | 2:55.74 | 2026 MMST GTA Skins | 2026-02-13 |
| 200m Butterfly | 2:38.98 | BBST Fall Invitational 2025 | 2025-11-21 |
| 200m Freestyle | 2:16.45 | 2025 Central Region Div 1 LC Championships | 2025-06-20 |
| 200m Freestyle | 2:11.72 | BAC SC Fall Invitational | 2025-11-07 |
| 200m IM | 2:36.15 | Scar Pan Am Winter Classic | 2026-01-16 |
| 200m IM | 2:29.51 | BAC SC Fall Invitational | 2025-11-07 |
| 400m Freestyle | 4:50.11 | Scar Pan Am Winter Classic | 2026-01-16 |
| 400m Freestyle | 4:31.28 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 400m IM | 5:29.28 | Scar Pan Am Winter Classic | 2026-01-16 |
| 400m IM | 5:14.13 | BAC SC Fall Invitational | 2025-11-07 |
| 50m Backstroke | 37.30 | 2025 MMST Club Champs | 2025-05-31 |
| 50m Breaststroke | 38.75 | 2026 MMST GTA Skins | 2026-02-13 |
| 50m Breaststroke | 35.90 | Border City Invitational 2025 | 2025-12-05 |
| 50m Butterfly | 35.10 | 2025 MMST Club Champs | 2025-05-31 |
| 50m Freestyle | 30.82 | 2025 Central Region Div 1 LC Championships | 2025-06-20 |
| 50m Freestyle | 29.54 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 800m Freestyle | 10:00.40 | Scar Pan Am Winter Classic | 2026-01-16 |
| 800m Freestyle | 9:39.39 | Border City Invitational 2025 | 2025-12-05 |
O'Sullivan, Zoe's top personal bests include 100m Backstroke (1:15.97), 100m Breaststroke (1:25.15), 100m Breaststroke (1:19.05), 100m Butterfly (1:15.63), 100m Freestyle (1:04.81).
O'Sullivan, Zoe swims for Milton Marlin Swim Team.
O'Sullivan, Zoe has competed in 9 meets.