| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:12.33 | Norm Banfield Memorial Open Development Meet | 2025-10-03 |
| 100m Breaststroke | 1:25.32 | Norm Banfield Memorial Open Development Meet | 2025-10-03 |
| 100m Butterfly | 1:09.33 | Spooktacular Goldfins Invitational 49 | 2025-10-24 |
| 100m Freestyle | 56.99 | Edmonton Open 2026 | 2026-01-30 |
| 100m Freestyle | 55.79 | Spooktacular Goldfins Invitational 49 | 2025-10-24 |
| 100m IM | 1:10.86 | Norm Banfield Memorial Open Development Meet | 2025-10-03 |
| 200m Butterfly | 2:50.91 | Anna Rondeau Memorial Challenge | 2025-06-08 |
| 200m Freestyle | 2:05.61 | Edmonton Open 2026 | 2026-01-30 |
| 200m Freestyle | 2:00.17 | 2025 Prairie Winter International | 2025-12-11 |
| 200m IM | 2:28.39 | ManSask Provincial Championships | 2025-07-10 |
| 200m IM | 2:26.69 | Spooktacular Goldfins Invitational 49 | 2025-10-24 |
| 400m Freestyle | 4:32.25 | ManSask Provincial Championships | 2025-07-10 |
| 400m Freestyle | 4:20.48 | 2025 Prairie Winter International | 2025-12-11 |
| 400m IM | 5:51.72 | Anna Rondeau Memorial Challenge | 2025-06-08 |
| 400m IM | 5:10.94 | Spooktacular Goldfins Invitational 49 | 2025-10-24 |
| 50m Backstroke | 32.63 | Norm Banfield Memorial Open Development Meet | 2025-10-03 |
| 50m Breaststroke | 37.25 | Norm Banfield Memorial Open Development Meet | 2025-10-03 |
| 50m Butterfly | 29.14 | Edmonton Open 2026 | 2026-01-30 |
| 50m Butterfly | 29.19 | Winter Solstice | 2025-11-29 |
| 50m Freestyle | 26.65 | Edmonton Open 2026 | 2026-01-30 |
| 50m Freestyle | 25.66 | 2025 Prairie Winter International | 2025-12-11 |
Pelzer, Nathaniel's top personal bests include 100m Backstroke (1:12.33), 100m Breaststroke (1:25.32), 100m Butterfly (1:09.33), 100m Freestyle (56.99), 100m Freestyle (55.79).
Pelzer, Nathaniel swims for Regina Optimist Dolphins Swim Team.
Pelzer, Nathaniel has competed in 8 meets.