| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:12.04 | 2026 Ontario Age Groups - MPAC | 2026-03-05 |
| 100m Backstroke | 1:08.68 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 100m Breaststroke | 1:46.29 | 2025 Central Region Div 2 LC Championships | 2025-06-13 |
| 100m Breaststroke | 1:32.28 | 2025 Alex Baumann Invitational | 2025-11-21 |
| 100m Butterfly | 1:14.05 | 2026 Mallards Winter LC Invitational | 2026-01-30 |
| 100m Butterfly | 1:11.52 | 2025 Alan Swanston Classic | 2025-12-05 |
| 100m Freestyle | 1:08.69 | 2025 Central Region Div 1 LC Championships | 2025-06-20 |
| 100m Freestyle | 1:05.06 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 100m IM | 1:16.20 | MAC Fall Fest Invitational | 2025-10-18 |
| 200m Backstroke | 2:34.50 | 2026 Ontario Age Groups - MPAC | 2026-03-05 |
| 200m Backstroke | 2:33.32 | 2025 Alan Swanston Classic | 2025-12-05 |
| 200m Breaststroke | 3:39.35 | 2025 Central Region Div 2 LC Championships | 2025-06-13 |
| 200m Breaststroke | 3:25.27 | 2025 RHAC Summer League | 2025-07-18 |
| 200m Butterfly | 3:09.37 | 2025 Age Group International LC | 2025-06-05 |
| 200m Butterfly | 2:51.15 | 2025 RHAC Summer League | 2025-07-18 |
| 200m Freestyle | 2:30.01 | MAC Rising Star #2 | 2025-05-30 |
| 200m Freestyle | 2:20.36 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 200m IM | 2:52.44 | 2025 Central Region Div 1 LC Championships | 2025-06-20 |
| 200m IM | 2:38.09 | 2025 Alan Swanston Classic | 2025-12-05 |
| 400m Freestyle | 5:14.89 | 2025 Central Region Div 1 LC Championships | 2025-06-20 |
| 400m Freestyle | 5:15.05 | MAC Fall Fest Invitational | 2025-10-18 |
| 400m IM | 5:55.97 | RHAC Winter Invitational 2026 | 2026-01-16 |
| 400m IM | 5:58.21 | RHAC Fall Classic 2025 | 2025-10-24 |
| 50m Backstroke | 32.85 | 2026 Ontario Age Groups - MPAC | 2026-03-05 |
| 50m Backstroke | 32.72 | 2025 MSSAC Open | 2025-12-19 |
| 50m Butterfly | 32.91 | 2026 Mallards Winter LC Invitational | 2026-01-30 |
| 50m Butterfly | 31.85 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 50m Freestyle | 30.96 | 2026 Mallards Winter LC Invitational | 2026-01-30 |
| 50m Freestyle | 29.35 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 800m Freestyle | 11:28.14 | MAC Rising Star #2 | 2025-05-30 |
| 800m Freestyle | 10:33.04 | 2025 MSSAC Open | 2025-12-19 |
Au, Siena's top personal bests include 100m Backstroke (1:12.04), 100m Backstroke (1:08.68), 100m Breaststroke (1:46.29), 100m Breaststroke (1:32.28), 100m Butterfly (1:14.05).
Au, Siena swims for Aurora Ducks Swimming Club.
Au, Siena has competed in 16 meets.