Pettengill, a junior, helped lead Luther to the combined team title at the two-day Falcon Invite hosted by UW-River Falls at the University of Minnesota Aquatics Center. He won both the 100 breaststroke (57.99) and 200 breaststroke (2:06.69) with NCAA B-Cut performances and swam on the winning 200 medley (1:38.02) and 400 medley (3:35.73) relays. Pettengill also took third in the 200 IM (2:03.79).