| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:33.18 | 2026 Central Region Div 2 SC Championships | 2026-02-20 |
| 100m Breaststroke | 1:37.67 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 100m Butterfly | 1:58.26 | SCAR Cindy Nicholas Memorial Meet | 2025-11-01 |
| 100m Freestyle | 1:20.57 | 2026 Central Region Div 2 SC Championships | 2026-02-20 |
| 200m Backstroke | 3:08.32 | 2026 Central Region Div 2 SC Championships | 2026-02-20 |
| 200m Breaststroke | 3:31.43 | ESWIM January Time Trial | 2026-01-20 |
| 200m Freestyle | 3:00.88 | 2025 Murray Drudge Invitational | 2025-12-05 |
| 200m IM | 3:21.30 | ESWIM January Time Trial | 2026-01-20 |
| 400m Freestyle | 6:21.15 | ESWIM 400 Time Trial | 2025-12-16 |
| 400m IM | 7:15.88 | Hall of Fame | 2025-10-18 |
| 50m Backstroke | 42.41 | 2026 Central Region Div 2 SC Championships | 2026-02-20 |
| 50m Breaststroke | 45.01 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 50m Freestyle | 35.80 | 2026 Central Region Div 2 SC Championships | 2026-02-20 |
| 800m Freestyle | 13:31.38 | ESWIM Distance Time Trial | 2025-11-11 |
Kokai, Josephine's top personal bests include 100m Backstroke (1:33.18), 100m Breaststroke (1:37.67), 100m Butterfly (1:58.26), 100m Freestyle (1:20.57), 200m Backstroke (3:08.32).
Kokai, Josephine swims for Etobicoke Swim Club.
Kokai, Josephine has competed in 12 meets.