2016-17: Finished fourth in the 500m at Indoor Heps at 1:13.53, while helping Columbia to a fifth place finish in the 4x400m relay at the same meet ... Also was on the Lions' fifth place 4x400m relay team at Outdoor Heps ... Ran a career best 56.63 in the 400m at the IC4A/ECAC Indoor Championships.
2015-16: Part of the Columbia 4x400m relay team that placed third during the Ivy League Outdoor Championships.
Personal: A 2014 graduate of Exeter High School in Exeter, N.H. ... Petersen arrives to Columbia with personal best times of 56.54 in the 400m run and 41.02 in the 300m run ... Studying Political Science at Columbia College.