| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:18.56 | Scar Pan Am Winter Classic | 2026-01-16 |
| 100m Backstroke | 1:14.63 | 2025 NYAC Cup | 2025-11-14 |
| 100m Breaststroke | 1:49.34 | MAC Jingle Bell | 2025-12-12 |
| 100m Butterfly | 1:18.20 | June Performance Meet 2025 | 2025-06-06 |
| 100m Butterfly | 1:17.38 | 2025 NYAC Cup | 2025-11-14 |
| 100m Freestyle | 1:04.88 | Scar Pan Am Winter Classic | 2026-01-16 |
| 100m Freestyle | 1:03.54 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 200m Backstroke | 2:46.33 | June Performance Meet 2025 | 2025-06-06 |
| 200m Backstroke | 2:39.60 | 2025 NYAC Cup | 2025-11-14 |
| 200m Butterfly | 3:00.53 | 2025 Murray Drudge Invitational | 2025-12-05 |
| 200m Freestyle | 2:25.67 | Scar Pan Am Winter Classic | 2026-01-16 |
| 200m Freestyle | 2:21.02 | 2025 Murray Drudge Invitational | 2025-12-05 |
| 400m Freestyle | 5:13.24 | Scar Pan Am Winter Classic | 2026-01-16 |
| 400m Freestyle | 5:03.39 | 2025 NYAC Cup | 2025-11-14 |
| 50m Backstroke | 35.08 | 2025 NYAC Cup | 2025-11-14 |
| 50m Breaststroke | 51.84 | June Performance Meet 2025 | 2025-06-06 |
| 50m Breaststroke | 50.12 | 2025 Red vs Black #1 | 2025-10-05 |
| 50m Butterfly | 36.63 | June Performance Meet 2025 | 2025-06-06 |
| 50m Butterfly | 33.52 | 2025 NYAC Cup | 2025-11-14 |
| 50m Freestyle | 30.24 | Scar Pan Am Winter Classic | 2026-01-16 |
| 50m Freestyle | 28.68 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 800m Freestyle | 10:25.67 | 2025 Murray Drudge Invitational | 2025-12-05 |
Lee, Joshua's top personal bests include 100m Backstroke (1:18.56), 100m Backstroke (1:14.63), 100m Breaststroke (1:49.34), 100m Butterfly (1:18.20), 100m Butterfly (1:17.38).
Lee, Joshua swims for North York Aquatic Club.
Lee, Joshua has competed in 9 meets.