| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:17.03 | KBM Heats & Finals | 2026-02-20 |
| 100m Butterfly | 1:16.06 | 2025 Maddy Kort Invitational | 2025-06-20 |
| 100m Freestyle | 1:07.69 | 2026 Eastern Ontario Regional Championship - Winte | 2026-01-30 |
| 100m IM | 1:17.98 | 2025 Maddy Kort Invitational | 2025-06-20 |
| 200m Breaststroke | 3:09.77 | 2026 Eastern Ontario Regional Championship - Winte | 2026-01-30 |
| 200m Butterfly | 3:24.77 | KBM Distance & Development | 2025-11-08 |
| 200m Freestyle | 2:31.87 | KBM Heats & Finals | 2026-02-20 |
| 200m IM | 2:49.41 | KBM Heats & Finals | 2026-02-20 |
| 400m Freestyle | 5:29.67 | KBM Distance & Development | 2025-11-08 |
| 50m Backstroke | 35.62 | 2025 Maddy Kort Invitational | 2025-06-20 |
| 50m Breaststroke | 40.43 | KBM Pentathlon | 2025-10-19 |
| 50m Butterfly | 32.48 | KBM Distance & Development | 2025-11-08 |
| 50m Freestyle | 29.95 | KBM Heats & Finals | 2026-02-20 |
Mulligan, Cecilia's top personal bests include 100m Backstroke (1:17.03), 100m Butterfly (1:16.06), 100m Freestyle (1:07.69), 100m IM (1:17.98), 200m Breaststroke (3:09.77).
Mulligan, Cecilia swims for Ernestown Barracuda Swim Club.
Mulligan, Cecilia has competed in 8 meets.