| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:07.52 | 2025 NYAC Cup | 2025-11-14 |
| 100m Butterfly | 1:04.90 | 2025 Downtown Sprint Meet | 2025-10-25 |
| 100m Freestyle | 55.05 | 2025 Murray Drudge Invitational | 2025-12-05 |
| 200m Backstroke | 2:24.31 | 2025 NYAC Cup | 2025-11-14 |
| 200m Freestyle | 2:07.91 | 2025 Downtown Sprint Meet | 2025-10-25 |
| 200m IM | 2:21.91 | 2025 Downtown Sprint Meet | 2025-10-25 |
| 400m Freestyle | 4:21.78 | 2025 NYAC Cup | 2025-11-14 |
| 50m Backstroke | 31.31 | 2025 Downtown Sprint Meet | 2025-10-25 |
| 50m Breaststroke | 37.24 | 2025 Red vs Black #1 | 2025-10-05 |
| 50m Butterfly | 28.09 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 50m Freestyle | 25.95 | 2025 Red vs Black #1 | 2025-10-05 |
Zweig, Harrison's top personal bests include 100m Backstroke (1:07.52), 100m Butterfly (1:04.90), 100m Freestyle (55.05), 200m Backstroke (2:24.31), 200m Freestyle (2:07.91).
Zweig, Harrison swims for North York Aquatic Club.
Zweig, Harrison has competed in 9 meets.