| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:38.73 | MAC Rising Star #2 | 2025-05-30 |
| 100m Backstroke | 1:26.77 | GHAC Winter Invitational SCM | 2026-03-06 |
| 100m Breaststroke | 1:56.52 | MAC Rising Star #2 | 2025-05-30 |
| 100m Breaststroke | 1:34.98 | GHAC Winter Invitational SCM | 2026-03-06 |
| 100m Butterfly | 1:50.57 | LAC - Nothers Fall Invitational | 2025-11-21 |
| 100m Freestyle | 1:24.96 | MAC Rising Star #2 | 2025-05-30 |
| 100m Freestyle | 1:12.39 | GHAC Winter Invitational SCM | 2026-03-06 |
| 200m Backstroke | 3:24.91 | MAC Rising Star #2 | 2025-05-30 |
| 200m Backstroke | 3:07.67 | GHAC Winter Invitational SCM | 2026-03-06 |
| 200m Breaststroke | 3:27.29 | GHAC Winter Invitational SCM | 2026-03-06 |
| 200m Freestyle | 3:01.32 | BAD Outdoor LC Invitational | 2025-06-20 |
| 200m Freestyle | 2:37.17 | GHAC Winter Invitational SCM | 2026-03-06 |
| 200m IM | 3:09.77 | David Lawson Invitational 2026 | 2026-01-23 |
| 400m Freestyle | 5:30.26 | GHAC Winter Invitational SCM | 2026-03-06 |
| 400m IM | 7:30.72 | LAC - Nothers Fall Invitational | 2025-11-21 |
| 50m Backstroke | 44.78 | BAD Outdoor LC Invitational | 2025-06-20 |
| 50m Backstroke | 39.96 | GHAC Winter Invitational SCM | 2026-03-06 |
| 50m Breaststroke | 58.23 | MAC Rising Star #2 | 2025-05-30 |
| 50m Breaststroke | 41.83 | GHAC Winter Invitational SCM | 2026-03-06 |
| 50m Butterfly | 44.76 | David Lawson Invitational 2026 | 2026-01-23 |
| 50m Freestyle | 36.42 | MAC Rising Star #2 | 2025-05-30 |
| 50m Freestyle | 32.02 | GHAC Winter Invitational SCM | 2026-03-06 |
| 800m Freestyle | 11:42.51 | David Lawson Invitational 2026 | 2026-01-23 |
Efstathiou, Evalina's top personal bests include 100m Backstroke (1:38.73), 100m Backstroke (1:26.77), 100m Breaststroke (1:56.52), 100m Breaststroke (1:34.98), 100m Butterfly (1:50.57).
Efstathiou, Evalina swims for Region of Waterloo Swim Club.
Efstathiou, Evalina has competed in 9 meets.