| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:15.33 | MAC Summer Invitational | 2025-07-24 |
| 100m Breaststroke | 1:17.68 | RHAC Winter Invitational 2026 | 2026-01-16 |
| 100m Breaststroke | 1:13.12 | MAC Jingle Bell | 2025-12-12 |
| 100m Butterfly | 1:13.89 | MAC Summer Invitational | 2025-07-24 |
| 100m Butterfly | 1:10.32 | MAC Fall Fest Invitational | 2025-10-18 |
| 200m Backstroke | 2:38.78 | RHAC Winter Invitational 2026 | 2026-01-16 |
| 200m Breaststroke | 2:51.12 | RHAC Winter Invitational 2026 | 2026-01-16 |
| 200m Breaststroke | 2:41.39 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 200m Freestyle | 2:19.67 | RHAC Winter Invitational 2026 | 2026-01-16 |
| 200m Freestyle | 2:16.43 | MAC Fall Fest Invitational | 2025-10-18 |
| 200m IM | 2:35.60 | 2025 Central Region Div 2 LC Championships | 2025-06-13 |
| 400m Freestyle | 5:00.81 | MAC Summer Invitational | 2025-07-24 |
| 400m Freestyle | 4:55.04 | 2025 Fall Distance Time Trial | 2025-11-15 |
| 400m IM | 5:27.27 | MAC Fall Fest Invitational | 2025-10-18 |
| 50m Breaststroke | 36.44 | MAC Summer Invitational | 2025-07-24 |
| 50m Breaststroke | 34.14 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 50m Butterfly | 31.07 | RHAC Winter Invitational 2026 | 2026-01-16 |
| 50m Butterfly | 29.88 | MAC Jingle Bell | 2025-12-12 |
| 50m Freestyle | 29.94 | 2025 Central Region Div 2 LC Championships | 2025-06-13 |
| 50m Freestyle | 28.09 | MAC Jingle Bell | 2025-12-12 |
| 800m Freestyle | 10:16.77 | MAC Summer Invitational | 2025-07-24 |
| 800m Freestyle | 9:58.08 | 2025 Fall Distance Time Trial | 2025-11-15 |
Ng, Nathaniel's top personal bests include 100m Backstroke (1:15.33), 100m Breaststroke (1:17.68), 100m Breaststroke (1:13.12), 100m Butterfly (1:13.89), 100m Butterfly (1:10.32).
Ng, Nathaniel swims for Witchurch-Stouffville Swim Club.
Ng, Nathaniel has competed in 8 meets.