Completed Event: Women's Swimming & Diving versus Princeton on November 7, 2025 , Loss , 71.5, to, 228.5
Final

Women's Swimming & Diving
vs Princeton
71.5
228.5

2007-2008: Competed in the 2008 Ivy Championships finishing 11th in the 1650 yard freestyle with a time of 17:16.37, which was a lifetime-best and she is now second all-time in the event. Sonstegard also set personal-best times in the 500 yard freestyle (4:57.75) and the 1000 yard freestyle (10:20.57), and was part of two relay teams that set Dartmouth records, the 400 yard freestyle relay that finished in 6th place with a time of 3:28.49, and the 800 yard freestyle relay that earned a 5th place finish with a time of 7:35.78.
Before Dartmouth: Graduated from The Bolles School in Jacksonville, Florida where she was team captain.
Personal: Daughter of Phil and Jackie Sonstegard of Sious Falls, S.D.
Individual Top Times:
| Event | Time |
| 50 Free | 25.76 |
| 100 Free | 56.75 |
| 200 Free | 1:57.46 |
| 500 Free | 4:57.75 |
| 1000 Free | 10:20.57 |
| 1650 Free | 17:16.37 |
| 100 Back | 1:03.08 |
| 200 Back | 2:16.17 |
| 200 Fly | 2:13.88 |
| 400 IM | 4:53.51 |