| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:47.73 | Goldfins Pentathlon | 2026-02-07 |
| 100m Backstroke | 1:53.90 | Norm Banfield Memorial Open Development Meet | 2025-10-03 |
| 100m Breaststroke | 2:03.14 | Goldfins Pentathlon | 2026-02-07 |
| 100m Breaststroke | 2:00.88 | Goldfins Blue vs Gold | 2025-06-28 |
| 100m Freestyle | 1:37.22 | Goldfins Pentathlon | 2026-02-07 |
| 100m Freestyle | 1:33.40 | Winter Solstice | 2025-11-29 |
| 100m IM | 1:51.87 | Norm Banfield Memorial Open Development Meet | 2025-10-03 |
| 200m Backstroke | 3:36.28 | Craven SPORT Services Racing Series #3 | 2026-03-07 |
| 200m Freestyle | 3:24.05 | Winter Solstice | 2025-11-29 |
| 200m IM | 3:51.57 | Goldfins Pentathlon | 2026-02-07 |
| 400m Freestyle | 6:44.15 | Craven SPORT Services Racing Series #3 | 2026-03-07 |
| 50m Backstroke | 50.13 | Winter Solstice | 2025-11-29 |
| 50m Breaststroke | 55.37 | Winter Solstice | 2025-11-29 |
| 50m Butterfly | 53.58 | Winter Solstice | 2025-11-29 |
| 50m Freestyle | 37.47 | Craven SPORT Services Racing Series #3 | 2026-03-07 |
Burkholder, Isabel's top personal bests include 100m Backstroke (1:47.73), 100m Backstroke (1:53.90), 100m Breaststroke (2:03.14), 100m Breaststroke (2:00.88), 100m Freestyle (1:37.22).
Burkholder, Isabel swims for Team Gold.
Burkholder, Isabel has competed in 9 meets.