| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:17.09 | 2025 Central Region Div 1 LC Championships | 2025-06-20 |
| 100m Backstroke | 1:13.10 | Border City Invitational 2025 | 2025-12-05 |
| 100m Breaststroke | 1:30.54 | SCAR Cindy Nicholas Memorial Meet | 2025-11-01 |
| 100m Butterfly | 1:20.86 | 2025 Central Region Div 1 LC Championships | 2025-06-20 |
| 100m Butterfly | 1:15.81 | Border City Invitational 2025 | 2025-12-05 |
| 100m Freestyle | 1:00.78 | 2026 Ontario Age Groups - MPAC | 2026-03-05 |
| 100m Freestyle | 1:00.19 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 100m IM | 1:11.91 | Dean Boles Invitational Meet | 2026-01-10 |
| 200m Backstroke | 2:46.26 | 2025 Central Region Div 1 LC Championships | 2025-06-20 |
| 200m Freestyle | 2:10.33 | 2026 Ontario Age Groups - MPAC | 2026-03-05 |
| 200m Freestyle | 2:07.06 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 200m IM | 2:33.00 | 2026 Ontario Age Groups - MPAC | 2026-03-05 |
| 200m IM | 2:28.55 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 400m Freestyle | 4:36.55 | Pan Am Open 2026 | 2026-02-21 |
| 50m Backstroke | 34.99 | SCAR Cindy Nicholas Memorial Meet | 2025-11-01 |
| 50m Butterfly | 32.38 | Border City Invitational 2025 | 2025-12-05 |
| 50m Freestyle | 27.67 | Pan Am Open 2026 | 2026-02-21 |
| 800m Freestyle | 9:41.53 | 2026 Ontario Age Groups - MPAC | 2026-03-05 |
| 800m Freestyle | 9:55.21 | SCAR Cindy Nicholas Memorial Meet | 2025-11-01 |
Li, Nicholas's top personal bests include 100m Backstroke (1:17.09), 100m Backstroke (1:13.10), 100m Breaststroke (1:30.54), 100m Butterfly (1:20.86), 100m Butterfly (1:15.81).
Li, Nicholas swims for Whitby Swimming.
Li, Nicholas has competed in 9 meets.