| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:20.84 | 2026 Ontario Age Groups - MPAC | 2026-03-05 |
| 100m Backstroke | 1:20.12 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 100m Breaststroke | 1:40.30 | RHAC Winter Invitational 2026 | 2026-01-16 |
| 100m Breaststroke | 1:36.56 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 100m Butterfly | 1:30.40 | MAC Fall Fest Invitational | 2025-10-18 |
| 100m Freestyle | 1:18.86 | RHAC Winter Invitational 2026 | 2026-01-16 |
| 100m Freestyle | 1:15.13 | Border City Invitational 2025 | 2025-12-05 |
| 200m Backstroke | 2:48.82 | 2026 Ontario Age Groups - MPAC | 2026-03-05 |
| 200m Backstroke | 2:47.50 | Border City Invitational 2025 | 2025-12-05 |
| 200m Breaststroke | 3:29.85 | RHAC Winter Invitational 2026 | 2026-01-16 |
| 200m Breaststroke | 3:23.12 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 200m Freestyle | 2:43.58 | RHAC Winter Invitational 2026 | 2026-01-16 |
| 200m Freestyle | 2:38.54 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 200m IM | 2:56.12 | 2026 Ontario Age Groups - MPAC | 2026-03-05 |
| 200m IM | 2:54.30 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 400m IM | 6:25.91 | RHAC Winter Invitational 2026 | 2026-01-16 |
| 50m Backstroke | 38.47 | 2026 Ontario Age Groups - MPAC | 2026-03-05 |
| 50m Backstroke | 38.24 | Border City Invitational 2025 | 2025-12-05 |
| 50m Breaststroke | 44.55 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 50m Butterfly | 41.60 | RHAC Winter Invitational 2026 | 2026-01-16 |
| 50m Butterfly | 39.36 | MAC Fall Fest Invitational | 2025-10-18 |
| 50m Freestyle | 34.76 | RHAC Winter Invitational 2026 | 2026-01-16 |
| 50m Freestyle | 33.78 | 2025 NYAC Cup | 2025-11-14 |
Cheong, Nathan's top personal bests include 100m Backstroke (1:20.84), 100m Backstroke (1:20.12), 100m Breaststroke (1:40.30), 100m Breaststroke (1:36.56), 100m Butterfly (1:30.40).
Cheong, Nathan swims for Toronto Olympian Swim Team.
Cheong, Nathan has competed in 7 meets.