| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:15.65 | Winter Festival | 2026-01-23 |
| 100m Breaststroke | 1:26.31 | 2025 Summer Divisionals - North & Interior | 2025-06-27 |
| 100m Butterfly | 1:18.03 | 2025 Remax Elk Valley Fall Blast | 2025-11-07 |
| 100m Freestyle | 1:04.06 | 2026 BC Winter Provincial Championships | 2026-03-05 |
| 100m IM | 1:18.54 | 2025 Friesen Plastics LASC Fall Challenge | 2025-10-24 |
| 1500m Freestyle | 5:56.34 | CTSC Fall Poseidon's Pentathlon | 2025-10-18 |
| 200m Backstroke | 2:49.13 | 2025 Friesen Plastics LASC Fall Challenge | 2025-10-24 |
| 200m Breaststroke | 3:16.53 | 2025 Remax Elk Valley Fall Blast | 2025-11-07 |
| 200m Butterfly | 3:22.45 | 2025 Friesen Plastics LASC Fall Challenge | 2025-10-24 |
| 200m Freestyle | 2:25.85 | Winter Festival | 2026-01-23 |
| 200m IM | 2:46.99 | Winter Festival | 2026-01-23 |
| 400m Freestyle | 5:25.34 | 2025 Summer Divisionals - North & Interior | 2025-06-27 |
| 50m Backstroke | 34.21 | Winter Festival | 2026-01-23 |
| 50m Breaststroke | 39.06 | 2026 BC Winter Provincial Championships | 2026-03-05 |
| 50m Butterfly | 32.45 | CTSC Fall Poseidon's Pentathlon | 2025-10-18 |
| 50m Freestyle | 28.43 | 2026 BC Winter Provincial Championships | 2026-03-05 |
Liu, Nian's top personal bests include 100m Backstroke (1:15.65), 100m Breaststroke (1:26.31), 100m Butterfly (1:18.03), 100m Freestyle (1:04.06), 100m IM (1:18.54).
Liu, Nian swims for Cranbrook Tritons.
Liu, Nian has competed in 10 meets.