| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:11.40 | Edmonton Open 2026 | 2026-01-30 |
| 100m Backstroke | 1:07.45 | 2026 Manta Grand Prix | 2026-02-20 |
| 100m Breaststroke | 1:17.23 | Edmonton Open 2026 | 2026-01-30 |
| 100m Breaststroke | 1:14.80 | 2026 Manta Grand Prix | 2026-02-20 |
| 100m Freestyle | 1:00.93 | 2026 Manta Grand Prix | 2026-02-20 |
| 100m IM | 1:08.77 | Bison Sprint IM Invitational | 2026-01-10 |
| 200m Backstroke | 2:32.50 | Edmonton Open 2026 | 2026-01-30 |
| 200m Backstroke | 2:26.28 | Seals West Side Challenge | 2025-11-28 |
| 200m Breaststroke | 2:44.25 | Edmonton Open 2026 | 2026-01-30 |
| 200m Breaststroke | 2:39.70 | 2026 Manta Grand Prix | 2026-02-20 |
| 200m Butterfly | 2:40.28 | Seals West Side Challenge | 2025-11-28 |
| 200m IM | 2:34.04 | ManSask Provincial Championships | 2025-07-10 |
| 400m Freestyle | 4:53.44 | Edmonton Open 2026 | 2026-01-30 |
| 400m Freestyle | 4:45.32 | The Steve Molloy Invitational 2025 | 2025-11-07 |
| 400m IM | 5:12.37 | St. James Seals Invitational | 2026-01-23 |
| 50m Backstroke | 33.28 | Edmonton Open 2026 | 2026-01-30 |
| 50m Backstroke | 31.68 | Bison Sprint IM Invitational | 2026-01-10 |
| 50m Breaststroke | 36.12 | ManSask Provincial Championships | 2025-07-10 |
| 50m Breaststroke | 35.03 | Seals West Side Challenge | 2025-11-28 |
| 50m Freestyle | 28.17 | 2026 Manta Grand Prix | 2026-02-20 |
| 800m Freestyle | 9:45.31 | Seals West Side Challenge | 2025-11-28 |
Lang, Ethan's top personal bests include 100m Backstroke (1:11.40), 100m Backstroke (1:07.45), 100m Breaststroke (1:17.23), 100m Breaststroke (1:14.80), 100m Freestyle (1:00.93).
Lang, Ethan swims for Manta Swim Club.
Lang, Ethan has competed in 9 meets.