| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:19.89 | 2026 Trojan Pentathlon | 2026-03-06 |
| 100m Breaststroke | 1:48.95 | Hall of Fame | 2025-10-18 |
| 100m Butterfly | 1:15.48 | 2026 Trojan Pentathlon | 2026-03-06 |
| 100m Freestyle | 1:08.15 | 2026 Joanne Malar Invitational | 2026-01-16 |
| 100m IM | 1:22.59 | 2026 Trojan Pentathlon | 2026-03-06 |
| 200m Backstroke | 2:53.33 | 2026 Trojan Pentathlon | 2026-03-06 |
| 200m Breaststroke | 3:46.48 | 2026 Trojan Pentathlon | 2026-03-06 |
| 200m Butterfly | 2:59.78 | 2026 Trojan Pentathlon | 2026-03-06 |
| 200m Freestyle | 2:39.31 | 2026 Joanne Malar Invitational | 2026-01-16 |
| 200m IM | 2:52.93 | 2026 Joanne Malar Invitational | 2026-01-16 |
| 400m Freestyle | 5:50.67 | Gus Ryder Memorial Cup 2025 | 2025-11-07 |
| 400m IM | 6:42.43 | Gus Ryder Memorial Cup 2025 | 2025-11-07 |
| 50m Backstroke | 37.17 | 2026 Trojan Pentathlon | 2026-03-06 |
| 50m Breaststroke | 47.46 | 2026 Trojan Pentathlon | 2026-03-06 |
| 50m Butterfly | 31.64 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 50m Freestyle | 31.38 | 2026 Joanne Malar Invitational | 2026-01-16 |
| 800m Freestyle | 11:19.37 | 2026 Joanne Malar Invitational | 2026-01-16 |
Harrison, James's top personal bests include 100m Backstroke (1:19.89), 100m Breaststroke (1:48.95), 100m Butterfly (1:15.48), 100m Freestyle (1:08.15), 100m IM (1:22.59).
Harrison, James swims for Lakeshore Swim Club.
Harrison, James has competed in 10 meets.