| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:15.01 | 2026 Eastern Ontario Regional Championship - Winte | 2026-01-30 |
| 100m Breaststroke | 1:36.14 | 2025 NKB Fall Invitational | 2025-10-17 |
| 100m Butterfly | 1:25.47 | 2026 NKB Winter Invitational Short Course | 2026-01-17 |
| 100m Freestyle | 1:11.68 | 2026 February Freeze Invitational | 2026-02-14 |
| 100m IM | 1:29.07 | 2025 GSH Summer Sizzler Invitational | 2025-07-19 |
| 200m Backstroke | 2:41.90 | 2026 Eastern Ontario Regional Championship - Winte | 2026-01-30 |
| 200m Breaststroke | 3:22.79 | 2025 NYAC Cup | 2025-11-14 |
| 200m Freestyle | 2:34.46 | 2026 February Freeze Invitational | 2026-02-14 |
| 200m IM | 2:49.87 | 2026 NKB Winter Invitational Short Course | 2026-01-17 |
| 400m Freestyle | 5:23.58 | 2026 Eastern Ontario Regional Championship - Winte | 2026-01-30 |
| 50m Backstroke | 35.03 | 2026 Eastern Ontario Regional Championship - Winte | 2026-01-30 |
| 50m Butterfly | 35.51 | 2026 February Freeze Invitational | 2026-02-14 |
| 50m Freestyle | 32.36 | 2025 PCS Xmas Cracker | 2025-12-05 |
| 800m Freestyle | 11:34.97 | GSH Time Trial | 2025-11-08 |
Mason, Addison's top personal bests include 100m Backstroke (1:15.01), 100m Breaststroke (1:36.14), 100m Butterfly (1:25.47), 100m Freestyle (1:11.68), 100m IM (1:29.07).
Mason, Addison swims for Goulbourn Sea Hawks.
Mason, Addison has competed in 12 meets.