| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:47.46 | MAC Rising Star #2 | 2025-05-30 |
| 100m Backstroke | 1:41.52 | Dean Boles Invitational Meet | 2026-01-10 |
| 100m Breaststroke | 2:06.78 | MAC Rising Star #2 | 2025-05-30 |
| 100m Breaststroke | 1:53.74 | GMAC Dash for Cash | 2025-12-05 |
| 100m Freestyle | 1:29.03 | MAC Rising Star #2 | 2025-05-30 |
| 100m Freestyle | 1:22.03 | David Lawson Invitational 2026 | 2026-01-23 |
| 200m Freestyle | 3:21.26 | MAC Rising Star #2 | 2025-05-30 |
| 200m Freestyle | 3:05.36 | GMAC Dash for Cash | 2025-12-05 |
| 200m IM | 3:48.07 | MAC Rising Star #2 | 2025-05-30 |
| 200m IM | 3:36.36 | GHAC Winter Invitational SCM | 2026-03-06 |
| 400m Freestyle | 6:44.97 | GMAC Dash for Cash | 2025-12-05 |
| 50m Backstroke | 44.87 | Dean Boles Invitational Meet | 2026-01-10 |
| 50m Breaststroke | 52.19 | GMAC Dash for Cash | 2025-12-05 |
| 50m Butterfly | 41.31 | David Lawson Invitational 2026 | 2026-01-23 |
| 50m Freestyle | 39.56 | MAC Rising Star #2 | 2025-05-30 |
| 50m Freestyle | 36.85 | Dean Boles Invitational Meet | 2026-01-10 |
| 800m Freestyle | 13:43.77 | David Lawson Invitational 2026 | 2026-01-23 |
Maxwell, Keira's top personal bests include 100m Backstroke (1:47.46), 100m Backstroke (1:41.52), 100m Breaststroke (2:06.78), 100m Breaststroke (1:53.74), 100m Freestyle (1:29.03).
Maxwell, Keira swims for Region of Waterloo Swim Club.
Maxwell, Keira has competed in 8 meets.