| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:34.03 | Norm Banfield Memorial Open Development Meet | 2025-10-03 |
| 100m Breaststroke | 1:41.80 | 2026 Sask Open Short Course Junior Provincials | 2026-02-27 |
| 100m Butterfly | 1:40.87 | Norm Banfield Memorial Open Development Meet | 2025-10-03 |
| 100m Freestyle | 1:17.53 | Winter Solstice | 2025-11-29 |
| 100m IM | 1:30.94 | Regina Racing Series #2 | 2025-06-07 |
| 200m Backstroke | 3:02.57 | 2026 Sask Open Short Course Junior Provincials | 2026-02-27 |
| 200m Freestyle | 2:42.16 | 2026 Sask Open Short Course Junior Provincials | 2026-02-27 |
| 200m IM | 3:07.84 | 2026 Sask Open Short Course Junior Provincials | 2026-02-27 |
| 400m Freestyle | 5:37.72 | 2026 Sask Open Short Course Junior Provincials | 2026-02-27 |
| 50m Backstroke | 44.05 | 2025 Prairie Winter International | 2025-12-11 |
| 50m Breaststroke | 47.52 | 2026 Sask Open Short Course Junior Provincials | 2026-02-27 |
| 50m Butterfly | 43.47 | Norm Banfield Memorial Open Development Meet | 2025-10-03 |
| 50m Freestyle | 34.42 | 2026 Sask Open Short Course Junior Provincials | 2026-02-27 |
DeLong, Nathan's top personal bests include 100m Backstroke (1:34.03), 100m Breaststroke (1:41.80), 100m Butterfly (1:40.87), 100m Freestyle (1:17.53), 100m IM (1:30.94).
DeLong, Nathan swims for Moose Jaw Kinsmen Flying Fins.
DeLong, Nathan has competed in 7 meets.