| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:28.15 | KBM Heats & Finals | 2026-02-20 |
| 100m Breaststroke | 1:29.29 | KBM Heats & Finals | 2026-02-20 |
| 100m Butterfly | 1:36.91 | Beast Cup 2026 | 2026-01-10 |
| 200m Backstroke | 3:11.29 | KBM Heats & Finals | 2026-02-20 |
| 200m Breaststroke | 3:28.39 | Beast Cup 2026 | 2026-01-10 |
| 200m Freestyle | 2:38.12 | KBM Heats & Finals | 2026-02-20 |
| 400m Freestyle | 6:04.10 | Beast Cup 2026 | 2026-01-10 |
| 400m IM | 6:55.46 | Beast Cup 2026 | 2026-01-10 |
| 50m Backstroke | 38.64 | KBM Heats & Finals | 2026-02-20 |
| 50m Breaststroke | 40.71 | Beast Cup 2026 | 2026-01-10 |
| 50m Butterfly | 38.25 | KBM Pentathlon | 2025-10-19 |
| 50m Freestyle | 31.53 | KBM Heats & Finals | 2026-02-20 |
Yim, Joshua's top personal bests include 100m Backstroke (1:28.15), 100m Breaststroke (1:29.29), 100m Butterfly (1:36.91), 200m Backstroke (3:11.29), 200m Breaststroke (3:28.39).
Yim, Joshua swims for Kingston Blue Marlins.
Yim, Joshua has competed in 5 meets.