| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:03.11 | 2025 Canada Games | 2025-08-10 |
| 100m Backstroke | 1:00.14 | 2026 Manta Grand Prix | 2026-02-20 |
| 100m Freestyle | 54.16 | 2025 Canada Games | 2025-08-10 |
| 100m Freestyle | 52.53 | Seals West Side Challenge | 2025-11-28 |
| 200m Backstroke | 2:24.19 | 2025 Canada Games | 2025-08-10 |
| 200m Backstroke | 2:21.11 | 2026 Manta Grand Prix | 2026-02-20 |
| 200m Freestyle | 2:06.11 | ManSask Provincial Championships | 2025-07-10 |
| 200m IM | 2:28.95 | The Steve Molloy Invitational 2025 | 2025-11-07 |
| 50m Backstroke | 28.42 | 2025 Canada Games | 2025-08-10 |
| 50m Backstroke | 27.12 | Seals West Side Challenge | 2025-11-28 |
| 50m Butterfly | 27.06 | ManSask Provincial Championships | 2025-07-10 |
| 50m Butterfly | 26.18 | Seals West Side Challenge | 2025-11-28 |
| 50m Freestyle | 24.91 | ManSask Provincial Championships | 2025-07-10 |
| 50m Freestyle | 24.42 | The Steve Molloy Invitational 2025 | 2025-11-07 |
Nkechika, Chukwurimnso's top personal bests include 100m Backstroke (1:03.11), 100m Backstroke (1:00.14), 100m Freestyle (54.16), 100m Freestyle (52.53), 200m Backstroke (2:24.19).
Nkechika, Chukwurimnso swims for Manta Swim Club.
Nkechika, Chukwurimnso has competed in 6 meets.