| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 2:08.40 | 2025 Stingrays' Annual Winter Break Invitational | 2025-12-12 |
| 200m Freestyle | 4:44.86 | 2025 Stingrays' Annual June Jamboree | 2025-06-13 |
| 50m Butterfly | 1:13.18 | 2025 Stingrays' Annual Winter Break Invitational | 2025-12-12 |
| 50m Freestyle | 56.96 | 2025 Stingrays' Annual Winter Break Invitational | 2025-12-12 |
Duncan, Graeson's top personal bests include 100m Backstroke (2:08.40), 200m Freestyle (4:44.86), 50m Butterfly (1:13.18), 50m Freestyle (56.96).
Duncan, Graeson swims for Nanaimo Riptides Swim Team.
Duncan, Graeson has competed in 2 meets.