Michaelis continued to commit to a collegiate career with Minnesota State University of the Western Collegiate Hockey Association (WCHA). In four seasons with the Mavericks, two as team Captain between the 2018–19 season and 2019–20 season, Michaelis accumulated 162 points in 148 games. In his senior year, Michaelis led the team in scoring with 44 points in 31 games played and was named the WCHA Offensive Player of the Year.
As an undrafted free agent and looking to embark on his professional career, Michaelis opted to sign a one-year, $700,000 contract with the Vancouver Canucks on March 20, 2020.[1] In the pandemic delayed and shortened 2020–21 season, Michaelis made his Canucks debut on March 4, 2021, replacing an injured Elias Pettersson in a 3-1 win over the Toronto Maple Leafs.[2] He appeared in 15 games for the regular season going scoreless.
As an impending restricted free agent, Michaelis was not tendered a qualifying by the Canucks and was released as a free agent. On August 18, 2021, he agreed to a one-year AHL contract with the Toronto Marlies, the primary affiliate to the Toronto Maple Leafs.[3]
On June 28, 2022, Michaelis opted to pause his North American career in agreeing to a one-year contract as a free agent with Swiss club, SCL Tigers of the NL.[4]
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