Lachapelle is serving as head coach of the U.S. Under-18 Women’s National Team for the first time and has served as an assistant coach for the U18 Women's National program for four straight seasons from 2013-17. During that time, she helped lead the U.S. to three gold medals (2015-17) and one silver medal (2014) in the IIHF U18 Women’s World Championship and also was part of the staff of the U.S. Under-18 Select Team that played in the U18 Series against Canada each season. Lachapelle has also served as an assistant coach of the U.S. Women’s National Under-22 Select Team both in 2018 and 2019 and has been a coach at numerous national and player development camps over the last decade.
Lachapelle finished her fourth season, and second as head coach, with the Holy Cross women’s ice hockey team in 2020-21. She spent the first two seasons as the team’s associate head coach. The Lewsiton, Maine, native helped increase the team’s win total in Hockey East by four in her first year as head coach and also its conference point total by nine.
Prior to joining the Crusaders coaching staff, Lachapelle was an assistant coach for nine seasons at Boston University (2008-17). During that time, she helped the Terriers to five Hockey East titles and six NCAA Tournament appearances, including two trips to the Frozen Four (2011, 2013) where the Terriers advanced to the title game both years. She also spent four seasons as an assistant coach at Ohio State University (2004-08) and prior to that was an assistant coach at Niagara University from 2001-04, highlighted by a trip to the NCAA Frozen Four in 2002. She began her collegiate coaching career as an assistant coach at Union College for two seasons (1999-01). Lachapelle received the Women’s Assistant Coach Award from the American Hockey Coaches Association in 2013.