2009-10: Mark Jankowski skated for the St. Catherine's Falcons midget AAA team in Ontario. In 33 games he scored 11 goals with 14 assists and had 14 penalty minutes.
2010-11: Jankowski transferred to Stanstead College in Quebec, which competes in the Midwest Prep and Canadian High School hockey leagues. In 78 games he scored 36 goals with 46 assists and had 32 penalty minutes. In two playoff games he scored 2 goals with 1 assist and 2 penalty minutes.
2011-12: Jankowski was the leading scorer for Stanstead College and committed to playing college hockey at Providence College in 2013-14. In 57 games for Stanstead College (39-18-6), he scored 53 goals with 40 assists and was plus-51 with 34 penalty minutes. The Saginaw Spirit drafted Jankowski in the seventh round (131st overall) of the 2012 OHL Priority Draft. He was invited to the NHL Draft Combine and ranked 43rd amongst North American skaters in Central Scouting's final rankings prior to the 2012 NHL Draft.
2012-13: Jankowski skated in 34 games for Providence College as a freshman as the Friars finished with a winning record for the first time since 2005-06. Frequently teamed with senior center Tim Schaller on the Friars' second line, he scored 7 goals with 11 assists and was +5 with 10 penalty minutes. Providence finished in a three-way tie for third in Hockey East and lost to regular season champion Massachusetts-Lowell, 2-1, in the Hockey East semifinals. Jankowski was invited to Hockey Canada's U20 camp for the 2014 World Junior Championship.
A prospect with some NHL bloodlines, Jankowski has grown several inches in the past year-and-a-half, to the point where he sports at least some of the size that NHL GM's look for in a center prospect. What he lacks is some bulk to go with his currently 6-2 frame as Jankowski weighs just 170 pounds. Nevertheless, the skill and talent appear to be there with Jankowski being a player that can generate offense on his own or in concert with his linemates, with his passing skills being nearly elite level. Jankowski plays a good two-way game and doesn't take many shifts off. As he gets used to his changing body, it is likely that he'll only get better, but playing against better competition will also help to improve Jankowski's game.
Jankowski will return to Providence for his second season in 2013-14 as he continues to develop his game and mature as a player. The progress of his game garnered an invitation from Team Canada for their WJC camp, and he will be in the mix of players considered for the team this winter. Another season will help Jankowski further strengthen areas such as skating, faceoffs, and back-checking to become a well-rounded center. Jankowski will most likely see a few more years at the collegiate level before competing at pro.