| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Freestyle | 1:28.58 | Delta March LMR | 2026-03-14 |
| 200m Freestyle | 3:15.34 | Delta March LMR | 2026-03-14 |
| 200m IM | 3:33.16 | Delta March LMR | 2026-03-14 |
| 50m Backstroke | 44.23 | Delta March LMR | 2026-03-14 |
| 50m Breaststroke | 54.45 | SKSC Winterfest | 2026-01-24 |
| 50m Butterfly | 46.17 | Delta March LMR | 2026-03-14 |
| 50m Freestyle | 39.95 | Delta March LMR | 2026-03-14 |
Guo, Arella's top personal bests include 100m Freestyle (1:28.58), 200m Freestyle (3:15.34), 200m IM (3:33.16), 50m Backstroke (44.23), 50m Breaststroke (54.45).
Guo, Arella swims for West Vancouver Otters Swim Club.
Guo, Arella has competed in 2 meets.