A dual-sport athlete, Dunklee also compets for the Dartmouth ski team. She has developed into an outstanding cross country runner. As a freshman, she earned All-Ivy and All-Region honors and was a consistent #2 performer for the Big Green. On the track, in her first ever efforts at the steeplechase, Dunklee narrowly missed scoring at the Heptagonal Championships. She also cracked the school's top 5 all-time list with her PR of 11:03.94. During her sophomore year, Susan earned All-Region honors while consistently running third in the Big Green lineup.