| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:22.46 | 2026 Central Region Div 2 SC Championships | 2026-02-20 |
| 100m Breaststroke | 1:42.45 | 2025 York Invitational | 2025-11-15 |
| 100m Freestyle | 1:10.21 | 2026 Central Region Div 2 SC Championships | 2026-02-20 |
| 100m IM | 1:24.81 | 2025 Downtown Sprint Meet | 2025-10-25 |
| 200m Freestyle | 2:36.82 | 2026 MSSAC 14U Future Stars | 2026-01-31 |
| 200m IM | 2:59.73 | 2026 MSSAC 14U Future Stars | 2026-01-31 |
| 400m Freestyle | 5:30.30 | MAC Jingle Bell | 2025-12-12 |
| 50m Backstroke | 37.31 | 2026 Central Region Div 2 SC Championships | 2026-02-20 |
| 50m Breaststroke | 46.88 | MAC Jingle Bell | 2025-12-12 |
| 50m Butterfly | 35.00 | 2026 MSSAC 14U Future Stars | 2026-01-31 |
| 50m Freestyle | 31.41 | 2026 Central Region Div 2 SC Championships | 2026-02-20 |
Roberts, Alton's top personal bests include 100m Backstroke (1:22.46), 100m Breaststroke (1:42.45), 100m Freestyle (1:10.21), 100m IM (1:24.81), 200m Freestyle (2:36.82).
Roberts, Alton swims for Toronto Swim Club.
Roberts, Alton has competed in 5 meets.