| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:06.69 | Saturday Night Showdown | 2025-06-14 |
| 100m Backstroke | 1:06.07 | Goldfins Blue vs Gold | 2025-06-28 |
| 100m Butterfly | 1:08.91 | Goldfins Winter Whiteout | 2026-02-06 |
| 100m Butterfly | 1:08.82 | OSC J.P. Fiset Invitational | 2025-12-11 |
| 100m Freestyle | 1:00.30 | ManSask Provincial Championships | 2025-07-10 |
| 200m Backstroke | 2:23.94 | Saturday Night Showdown | 2025-06-14 |
| 200m Backstroke | 2:25.48 | OSC J.P. Fiset Invitational | 2025-12-11 |
| 200m Butterfly | 2:35.26 | OSC J.P. Fiset Invitational | 2025-12-11 |
| 200m Freestyle | 2:14.43 | Goldfins Winter Whiteout | 2026-02-06 |
| 200m Freestyle | 2:12.73 | OSC J.P. Fiset Invitational | 2025-12-11 |
| 200m IM | 2:39.20 | Goldfins Winter Whiteout | 2026-02-06 |
| 400m Freestyle | 4:43.68 | ManSask Provincial Championships | 2025-07-10 |
| 400m Freestyle | 4:39.58 | Goldfins Blue vs Gold | 2025-06-28 |
| 400m IM | 6:07.63 | ManSask Provincial Championships | 2025-07-10 |
| 50m Backstroke | 31.52 | Goldfins Winter Whiteout | 2026-02-06 |
| 50m Backstroke | 30.92 | Spooktacular Goldfins Invitational 49 | 2025-10-24 |
| 50m Butterfly | 30.62 | Goldfins Winter Whiteout | 2026-02-06 |
| 50m Butterfly | 31.52 | Spooktacular Goldfins Invitational 49 | 2025-10-24 |
| 50m Freestyle | 29.28 | Goldfins Winter Whiteout | 2026-02-06 |
| 50m Freestyle | 27.84 | Goldfins Blue vs Gold | 2025-06-28 |
| 800m Freestyle | 10:44.87 | Goldfins Winter Whiteout | 2026-02-06 |
Nesteroff, Benjamin's top personal bests include 100m Backstroke (1:06.69), 100m Backstroke (1:06.07), 100m Butterfly (1:08.91), 100m Butterfly (1:08.82), 100m Freestyle (1:00.30).
Nesteroff, Benjamin swims for Team Gold.
Nesteroff, Benjamin has competed in 6 meets.