| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Breaststroke | 1:25.65 | 2025 Age Group International LC | 2025-06-05 |
| 100m Breaststroke | 1:21.07 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 100m Butterfly | 1:06.42 | 2026 Ontario Age Groups - MPAC | 2026-03-05 |
| 100m Butterfly | 1:06.14 | 2025 Alex Baumann Invitational | 2025-11-21 |
| 100m Freestyle | 1:01.03 | 2026 Ontario Age Groups - MPAC | 2026-03-05 |
| 100m Freestyle | 58.98 | Pan Am Open 2026 | 2026-02-21 |
| 200m Breaststroke | 3:00.32 | MAC Winter Invitational | 2026-01-22 |
| 200m Breaststroke | 2:59.06 | 2025 Alex Baumann Invitational | 2025-11-21 |
| 200m Butterfly | 2:32.69 | 2026 Ontario Age Groups - MPAC | 2026-03-05 |
| 200m Butterfly | 2:26.30 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 200m Freestyle | 2:16.90 | MAC Winter Invitational | 2026-01-22 |
| 200m Freestyle | 2:17.38 | MAC Fall Fest Invitational | 2025-10-18 |
| 200m IM | 2:33.36 | 2026 Ontario Age Groups - MPAC | 2026-03-05 |
| 200m IM | 2:29.59 | 2026 Joanne Malar Invitational | 2026-01-16 |
| 400m Freestyle | 5:06.65 | 2025 Age Group International LC | 2025-06-05 |
| 400m Freestyle | 4:49.05 | 2025 Alex Baumann Invitational | 2025-11-21 |
| 400m IM | 5:48.73 | 2025 Age Group International LC | 2025-06-05 |
| 50m Backstroke | 34.25 | 2025 Alex Baumann Invitational | 2025-11-21 |
| 50m Breaststroke | 35.71 | 2026 Ontario Age Groups - MPAC | 2026-03-05 |
| 50m Breaststroke | 35.03 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 50m Butterfly | 33.67 | 2025 Age Group International LC | 2025-06-05 |
| 50m Butterfly | 30.48 | 2026 Joanne Malar Invitational | 2026-01-16 |
| 50m Freestyle | 28.18 | MAC Winter Invitational | 2026-01-22 |
| 50m Freestyle | 27.67 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 800m Freestyle | 10:59.87 | 2025 Age Group International LC | 2025-06-05 |
| 800m Freestyle | 9:52.96 | 2026 Joanne Malar Invitational | 2026-01-16 |
Li, Haiyuan's top personal bests include 100m Breaststroke (1:25.65), 100m Breaststroke (1:21.07), 100m Butterfly (1:06.42), 100m Butterfly (1:06.14), 100m Freestyle (1:01.03).
Li, Haiyuan swims for New Stars Swimming Club.
Li, Haiyuan has competed in 8 meets.