2008-09: While Mitch Callahan put up 27 points as a member of the Kelowna Rockets, his most visible statistic is his 188 penalty minutes.
2009-10: In his second WHL season with Kelowna, Callahan upped his offensive totals with 20 goals, 27 assists for 47 points. The winger also added 165 PIMs. In 12 playoff games, Callahn scored 2 goals and 4 assists for 6 points.
2010-11: Callahan took on a more prominent role for the WHL’s Kelowna Rockets. He was able to put up 23 goals and 31 assists for 54 points in 62 games with the team. He also cut his penalty minutes in half, finishing the year with 87. Callahan had a productive playoff as well, scoring 5 goals and 4 assists for 9 points over 10 games.
2011-12: Callahan appeared in 48 of 76 games for AHL Grand Rapids in his first pro season. Used mostly in a lower line, forechecking role, he was third on the Griffins with 103 penalty minutes and finished minus-three with 3 goals and 9 assists. The Griffins finished fourth in the North Division; missing the playoffs.
2012-13: Callahan skated in 71 of 76 games in his second season with Detroit AHL affiliate Grand Rapids. Playing an agitating, two-way game, he scored 11 goals with 9 assists and was -1 with 93 penalty minutes (third most for Grand Rapids). The Griffins finished first in the Midwest Division and captured the Calder Cup championship. Callahan played in all 24 playoff games, scoring 6 goals with 5 assists, and was +1 with 33 penalty minutes.
2013-14: Callahan made his NHL debut late in his third pro season — finishing with no points nor penalties and an even plus/minus in nine minutes of ice time for the Red Wings in a March 25th game at Columbus (his only NHL appearance). Frequently skating on the top line for Detroit AHL affiliate Grand Rapids with leading scorer Teemu Pulkkinen, Callahan was second to Pulkkinen with 26 goals, a career-high, and was +23 with 18 assists and 51 penalty minutes in 70 regular season games. Grand Rapids finished second in the Midwest Division and reached the second round in the playoffs. Callahan scored 1 goal with 4 assists and was -5 with 6 penalty minutes in eight playoff games. He was tendered a quailfying offer by Detroit and re-signed to a one-year contract as a restricted free agent in July 2014.
2014-15: Callahan skated on the top line for Detroit AHL affiliate Grand Rapids in his fourth pro season — appearing in 48 regular season games for the Griffins before suffering a season-ending knee injury in February 2015. He scored 16 goals with 22 assists and was +3 with 24 penalty minutes.
Callahan has steadily transitioned from and agitator/scrapper-type to a consistent scorer at the AHL level during his four-year pro career. Skating on the top line for Detroit AHL affiliate Grand Rapids in 2014-15 before suffering a serious knee injury, Callahan developed some nice chemistry with Red Wings' prospect Teemu Pulkkinen. He is not an overly flashy offensive player but reads the play well, has some foot speed and uses his size to his advantage, more than willing to go to the front of the net to create chances.
Callahan was in the midst of another solid AHL season for Detroit affiliate Grand Rapids in 2014-15 — skating on the Griffins' top line — and looked to be a re-call candidate before suffering a season-ending knee injury in February 2015. With the depth in the Red Wings' organization he faces steep odds in playing for Detroit. However, his play the past two seasons and his versatility suggests he can be an interesting option, assuming he fully recovers from his injury, for a team in need of forward depth.