| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:31.59 | Icebreaker Invitational | 2026-01-30 |
| 100m Breaststroke | 1:37.22 | Winter Waves Invitational | 2026-03-13 |
| 100m Freestyle | 1:24.47 | Bluefins Fall Pentathlon | 2025-11-14 |
| 100m IM | 1:42.59 | Bluefins Fall Pentathlon | 2025-11-14 |
| 200m Backstroke | 3:20.92 | Icebreaker Invitational | 2026-01-30 |
| 200m Breaststroke | 3:37.93 | Winter Waves Invitational | 2026-03-13 |
| 200m Freestyle | 2:48.60 | Winter Waves Invitational | 2026-03-13 |
| 400m Freestyle | 6:16.39 | Winter Waves Invitational | 2026-03-13 |
| 50m Backstroke | 40.60 | Icebreaker Invitational | 2026-01-30 |
| 50m Breaststroke | 45.78 | Winter Waves Invitational | 2026-03-13 |
| 50m Butterfly | 55.67 | Bluefins Fall Pentathlon | 2025-11-14 |
| 50m Freestyle | 34.95 | Winter Waves Invitational | 2026-03-13 |
Smith, Grayson's top personal bests include 100m Backstroke (1:31.59), 100m Breaststroke (1:37.22), 100m Freestyle (1:24.47), 100m IM (1:42.59), 200m Backstroke (3:20.92).
Smith, Grayson swims for St. John's Legends Swim Club.
Smith, Grayson has competed in 4 meets.