for the Griffins, posting a 19–11–7 record, a 2.40 GAA and a .916 save percentage. During the 2015 Calder Cup playoffs McCollum became the first Griffins goalie to win five consecutive home playoff games, while tying Marc Lamothe's postseason record of five consecutive victories overall set in 2003. McCollum was awarded the IOA/American Specialty AHL Man of the Year award for his outstanding contributions to the Grand Rapids community during the 2014–15 season. On July 1, 2015, McCollum signed a one-year contract extension with the Red Wings. On January 15, 2016, McCollum was assigned to the Toledo Walleye for conditioning. McCollum has played in 10 games with the Griffins this season, posting a 4–6–0 record, a 2.53 GAA and a .924 save percentage. He was injured on December 5, 2015, while earning his fourth straight win with a 4–1 decision over the Lake Erie Monsters. After the 2015–16 season, McCollum ended his seven-year association with the Red Wings. Leaving as a free agent and later accepted a professional try-out contract to attend the Los Angeles Kings training camp on August 16, 2016. After his release from the Kings, on October 15, 2016, McCollum secured a NHL contract in signing a two-year, two-way contract with the Calgary Flames. Assigned to AHL affiliate, the Stockton Heat, McCollum as the third choice option, appeared in just a single game with the Heat in November before he was reassigned to feature in 5 games with ECHL affiliate, the Adirondack Thunder. On March 8, 2017, McCollum was loaned by the Flames to fellow AHL club, the Charlotte Checkers for the remainder of the season. On July 1, 2017, McCollum was traded back to the Detroit Red Wings in exchange for a conditional 7th round draft pick in the 2018 NHL Entry Draft. In the 2017–18 season, McCollum re-united with the Griffins and appeared in 37 games posting a 20-14-3 record. As a free agent from the Red Wings, McCollum departed the club for a second time in agreeing to a one-year AHL contract with the Milwaukee Admirals, affiliate to the Nashville Predators, on July 17, 2018. On February 19, 2019, McCollum signed a one-year, two-way contract with the Nashville Predators. As a free agent and leaving the Predators organization, McCollum agreed to a one-year AHL contract to add depth to the Hartford Wolf Pack, affiliate to the New York Rangers, on July 1, 2019. In