| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:04.67 | GHAC SC Last Chance Qualifier 2026 | 2026-01-30 |
| 100m Breaststroke | 1:19.85 | MAC Winter Invitational | 2026-01-22 |
| 100m Butterfly | 1:06.65 | MAC Winter Invitational | 2026-01-22 |
| 100m Freestyle | 56.83 | Border City Invitational 2025 | 2025-12-05 |
| 100m IM | 1:06.82 | GHAC Fall Invitational SCM | 2025-11-21 |
| 200m Backstroke | 2:14.19 | Border City Invitational 2025 | 2025-12-05 |
| 200m Breaststroke | 2:43.93 | Border City Invitational 2025 | 2025-12-05 |
| 200m Freestyle | 2:04.75 | MAC Winter Invitational | 2026-01-22 |
| 200m Freestyle | 1:58.69 | Border City Invitational 2025 | 2025-12-05 |
| 200m IM | 2:19.70 | Border City Invitational 2025 | 2025-12-05 |
| 400m Freestyle | 4:18.33 | Border City Invitational 2025 | 2025-12-05 |
| 400m IM | 5:10.76 | GHAC In-House Time Trial 200/400 IM | 2025-11-18 |
| 800m Freestyle | 9:14.85 | GHAC Fall Invitational SCM | 2025-11-21 |
Anderson, William's top personal bests include 100m Backstroke (1:04.67), 100m Breaststroke (1:19.85), 100m Butterfly (1:06.65), 100m Freestyle (56.83), 100m IM (1:06.82).
Anderson, William swims for Golden Horseshoe Aquatic Club.
Anderson, William has competed in 8 meets.