Thompson appeared in 32 games during the 2019-20 season with the ECHL's South Carolina Stingrays. The Calgary, Alberta native posted a 2.25 GAA and .929 save percentage during his lone season in North Charleston, South Carolina with the Stingrays. During the 2018-19 season, Thompson was named the U Sports OUA West Goaltender of the Year after collecting a 2.22 GAA and .934 save percentage in 24 games with Brock University in St. Catharines, Ontario. The goaltender also spent parts of four seasons playing in the Western Hockey League with the Brandon Wheat Kings, and helped Brandon to a WHL Championship during the 2015-16 season.