| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:24.64 | LC Winter Invitational | 2026-01-30 |
| 100m Backstroke | 1:22.05 | Wilmot Aces In House Meet 2025 | 2025-12-20 |
| 100m Breaststroke | 1:38.01 | Scar Pan Am Winter Classic | 2026-01-16 |
| 100m Breaststroke | 1:30.76 | Wilmot Aces Fall Invitational | 2025-11-15 |
| 100m Butterfly | 1:21.39 | LC Winter Invitational | 2026-01-30 |
| 100m Butterfly | 1:19.18 | Wilmot Aces Fall Invitational | 2025-11-15 |
| 100m Freestyle | 1:08.82 | Scar Pan Am Winter Classic | 2026-01-16 |
| 100m Freestyle | 1:08.91 | Western Region Short Course Championships | 2026-02-12 |
| 200m Backstroke | 2:57.01 | LC Winter Invitational | 2026-01-30 |
| 200m Backstroke | 2:50.22 | Walker Invitational | 2025-10-25 |
| 200m Breaststroke | 3:24.65 | Scar Pan Am Winter Classic | 2026-01-16 |
| 200m Breaststroke | 3:10.27 | Wilmot Aces Fall Invitational | 2025-11-15 |
| 200m Freestyle | 2:32.01 | Western Region Long Course Championships | 2025-06-13 |
| 200m Freestyle | 2:24.24 | Western Region Short Course Championships | 2026-02-12 |
| 200m IM | 2:57.77 | Western Region Long Course Championships | 2025-06-13 |
| 200m IM | 2:50.70 | Walker Invitational | 2025-10-25 |
| 400m Freestyle | 5:12.48 | Scar Pan Am Winter Classic | 2026-01-16 |
| 400m Freestyle | 5:02.94 | Western Region Short Course Championships | 2026-02-12 |
| 400m IM | 6:07.25 | Scar Pan Am Winter Classic | 2026-01-16 |
| 50m Breaststroke | 46.56 | LC Winter Invitational | 2026-01-30 |
| 50m Breaststroke | 43.69 | Wilmot Aces In House Meet 2025 | 2025-12-20 |
| 50m Butterfly | 35.66 | Walker Invitational | 2025-10-25 |
| 50m Freestyle | 31.83 | Wilmot Aces Fall Invitational | 2025-11-15 |
| 800m Freestyle | 10:37.81 | LC Winter Invitational | 2026-01-30 |
| 800m Freestyle | 10:28.46 | Wilmot Aces Fall Invitational | 2025-11-15 |
Pfeifer, Elizabeth's top personal bests include 100m Backstroke (1:24.64), 100m Backstroke (1:22.05), 100m Breaststroke (1:38.01), 100m Breaststroke (1:30.76), 100m Butterfly (1:21.39).
Pfeifer, Elizabeth swims for Wilmot Aquatic Aces Club.
Pfeifer, Elizabeth has competed in 7 meets.