| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Freestyle | 2:01.59 | St. James Seals Invitational | 2026-01-23 |
| 100m IM | 1:53.23 | The Steve Molloy Invitational 2025 | 2025-11-07 |
| 50m Backstroke | 46.10 | St. James Seals Invitational | 2026-01-23 |
| 50m Breaststroke | 59.36 | The Steve Molloy Invitational 2025 | 2025-11-07 |
| 50m Butterfly | 53.80 | St. James Seals Invitational | 2026-01-23 |
| 50m Freestyle | 41.29 | St. James Seals Invitational | 2026-01-23 |
Janzen, Ari's top personal bests include 100m Freestyle (2:01.59), 100m IM (1:53.23), 50m Backstroke (46.10), 50m Breaststroke (59.36), 50m Butterfly (53.80).
Janzen, Ari swims for St James Seals Swim Club.
Janzen, Ari has competed in 3 meets.