| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:30.37 | MAC Jingle Bell | 2025-12-12 |
| 100m Breaststroke | 1:34.90 | MAC Jingle Bell | 2025-12-12 |
| 100m Freestyle | 1:09.65 | MAC Jingle Bell | 2025-12-12 |
| 100m IM | 1:23.71 | Pan Am Open 2026 | 2026-02-21 |
| 200m Freestyle | 2:43.92 | MAC Jingle Bell | 2025-12-12 |
| 200m IM | 3:05.00 | MAC Jingle Bell | 2025-12-12 |
| 50m Backstroke | 41.90 | MAC Jingle Bell | 2025-12-12 |
| 50m Breaststroke | 42.69 | MAC Jingle Bell | 2025-12-12 |
| 50m Butterfly | 38.76 | MAC Rising Star #1 | 2025-11-08 |
| 50m Freestyle | 31.24 | Pan Am Open 2026 | 2026-02-21 |
Cheng, David's top personal bests include 100m Backstroke (1:30.37), 100m Breaststroke (1:34.90), 100m Freestyle (1:09.65), 100m IM (1:23.71), 200m Freestyle (2:43.92).
Cheng, David swims for Markham Aquatic Club.
Cheng, David has competed in 4 meets.