Pieper completed his senior season at Quinnipiac University in 2017-18, registering 18 points (11g-7a) 38 games and being named 2018 ECAC Men’s Hockey Student-Athlete of the Year. He signed his first professional contract with the Adirondack Thunder after completing his collegiate season and skated in three games (4 PIM) for the club.
The 23-year-old tallied 65 points (32g-33a) over 158 games at Quinnipiac and missed just two games in four collegiate seasons. As a junior, he tied for the team lead with 13 goals and he scored the game-winning goal in the 2016 ECAC Tournament Championship vs. Harvard that catapulted Quinnipiac to the NCAA Tournament. The Bobcats made it to the school’s second-ever Frozen Four that season and fell to Yale in the National Championship game.
Before enrolling at Quinnipiac, Pieper skated for Coquitlam of the British Columbia Hockey League and won the 2014 Fred Page Cup.