St. Lawrence University Athletics

2012-13: Corey was seventh in the NYSCTRC indoor 1000 and fifth in both the Liberty League and NYSCTC Outdoor championships in the 1500 meters. He also ran the 800, 3000 and 5000.

2011-12 Indoor: Corey posted personal bests in the 800, 1000 and mile and ran his first collegiate 3000 and 600 as a sophomore. He also ran on the 4x800 relay which ran the best time of the year with a 7:55.47 clocking at the ECAC Championships and ran on DMR teams.2012 Outdoor: Corey ran the 800, 1500 and steeplechase during the outdoor season and established personal bests in the 1500 and steeplechase.

010-11: Corey ran the 800, 1000 and mile during the indoor season with a win in the mile at the Can Am Challenge.

At Milford
Hahnl was a tri-sport stand-out athlete, captaining the Cross Country as well as Indoor and Outdoor Track and Field. The Milford, NH native is a two-time All-State honoree for track and field and is part of the Class I 4x800 relay record holding team. Corey also excelled in the classroom, as he was a High Honor Roll student and was inducted into the National Honor Society.