| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Breaststroke | 1:38.83 | Gus Ryder Memorial Cup 2025 | 2025-11-07 |
| 100m Freestyle | 1:10.05 | Hall of Fame | 2025-10-18 |
| 200m Freestyle | 2:31.40 | Gus Ryder Memorial Cup 2025 | 2025-11-07 |
| 200m IM | 2:58.39 | Hall of Fame | 2025-10-18 |
| 400m Freestyle | 5:34.40 | Gus Ryder Memorial Cup 2025 | 2025-11-07 |
| 50m Backstroke | 39.33 | Hall of Fame | 2025-10-18 |
| 50m Breaststroke | 45.01 | 2025 HAC Steeltown Invitational | 2025-11-28 |
| 50m Butterfly | 36.22 | Hall of Fame | 2025-10-18 |
| 50m Freestyle | 31.85 | Gus Ryder Memorial Cup 2025 | 2025-11-07 |
| 800m Freestyle | 11:19.33 | Gus Ryder Memorial Cup 2025 | 2025-11-07 |
Grobb, Piper's top personal bests include 100m Breaststroke (1:38.83), 100m Freestyle (1:10.05), 200m Freestyle (2:31.40), 200m IM (2:58.39), 400m Freestyle (5:34.40).
Grobb, Piper swims for Hamilton Aquatic Club.
Grobb, Piper has competed in 8 meets.