| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 57.28 | Toronto Grand Prix | 2026-01-24 |
| 100m Backstroke | 51.97 | 2026 U SPORTS Swimming Championships | 2026-03-12 |
| 100m Freestyle | 49.44 | 2025 NYAC Cup | 2025-11-14 |
| 200m Backstroke | 1:55.30 | 2026 U SPORTS Swimming Championships | 2026-03-12 |
| 200m Freestyle | 1:45.82 | 2026 U SPORTS Swimming Championships | 2026-03-12 |
| 50m Backstroke | 23.92 | 2026 U SPORTS Swimming Championships | 2026-03-12 |
| 50m Butterfly | 24.54 | 2025 NYAC Cup | 2025-11-14 |
| 50m Freestyle | 24.17 | Toronto Grand Prix | 2026-01-24 |
| 50m Freestyle | 22.99 | UT QUAD Meet (vs Calgary, Western, Quebec) | 2026-01-23 |
Benjamin Winterborn's top personal bests include 100m Backstroke (57.28), 100m Backstroke (51.97), 100m Freestyle (49.44), 200m Backstroke (1:55.30), 200m Freestyle (1:45.82).
Benjamin Winterborn swims for University of Toronto.
Benjamin Winterborn has competed in 9 meets.