| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:24.84 | MAC Rising Star #2 | 2025-05-30 |
| 100m Backstroke | 1:22.63 | MAC Jingle Bell | 2025-12-12 |
| 100m Breaststroke | 1:44.50 | 2025 OAK Brad Townsend Fall Classic | 2025-10-17 |
| 100m Butterfly | 1:30.17 | MAC Rising Star #2 | 2025-05-30 |
| 100m Butterfly | 1:19.92 | Gus Ryder Memorial Cup 2025 | 2025-11-07 |
| 100m Freestyle | 1:15.49 | MAC Rising Star #2 | 2025-05-30 |
| 100m Freestyle | 1:11.80 | David Lawson Invitational 2026 | 2026-01-23 |
| 100m IM | 1:24.58 | MAC Jingle Bell | 2025-12-12 |
| 200m Backstroke | 3:06.42 | 2025 Central Region Div 2 LC Championships | 2025-06-13 |
| 200m Backstroke | 3:00.89 | David Lawson Invitational 2026 | 2026-01-23 |
| 200m Butterfly | 3:25.38 | MAC Jingle Bell | 2025-12-12 |
| 200m Freestyle | 2:51.67 | MAC Rising Star #2 | 2025-05-30 |
| 200m Freestyle | 2:42.42 | MAC Jingle Bell | 2025-12-12 |
| 200m IM | 3:12.16 | 2025 Central Region Div 2 LC Championships | 2025-06-13 |
| 200m IM | 3:05.86 | Gus Ryder Memorial Cup 2025 | 2025-11-07 |
| 400m Freestyle | 6:14.64 | MAC Rising Star #2 | 2025-05-30 |
| 50m Backstroke | 38.99 | MAC Rising Star #2 | 2025-05-30 |
| 50m Backstroke | 37.70 | 2026 Central Region Div 2 SC Championships | 2026-02-20 |
| 50m Breaststroke | 51.46 | MAC Rising Star #2 | 2025-05-30 |
| 50m Breaststroke | 49.77 | 2026 Trojan Pentathlon | 2026-03-06 |
| 50m Butterfly | 38.63 | MAC Rising Star #2 | 2025-05-30 |
| 50m Butterfly | 36.03 | 2026 Central Region Div 2 SC Championships | 2026-02-20 |
| 50m Freestyle | 33.98 | 2025 Central Region Div 2 LC Championships | 2025-06-13 |
| 50m Freestyle | 33.50 | 2026 Central Region Div 2 SC Championships | 2026-02-20 |
| 800m Freestyle | 11:58.58 | David Lawson Invitational 2026 | 2026-01-23 |
Cumbo, Emma's top personal bests include 100m Backstroke (1:24.84), 100m Backstroke (1:22.63), 100m Breaststroke (1:44.50), 100m Butterfly (1:30.17), 100m Butterfly (1:19.92).
Cumbo, Emma swims for Oakville Aquatic Club.
Cumbo, Emma has competed in 8 meets.