2009-10: Jeremy Gregoire played in Quebec’s midget AAA league as a 14-year-old. In 28 games for the Magog Cantoniers he scored 4 goals with 8 assists and had 22 penalty minutes. Gregoire scored 3 goals with 1 assist and had 6 penalty minutes in ten provincial playoff games.
2010-11: Gregoire had 53 points in 38 games as an assistant captain for Magog in his second season and represented Quebec in the 2011 U17 World Hockey Challenge and Canada Winter Games tournaments. He scored 28 goals with 25 assists and had 42 penalty minutes in the regular season. Magog reached the provincial semifinals and Gregoire scored 8 goals with 8 assists and had 10 penalty minutes in 13 playoff games. He had 1 assist with 12 penalty minutes in six games for silver medal-winning Canada Quebec at the WHC and scored 5 goals with 1 assist in six games for Team Quebec at the Canada Winter Games. Gregoire was selected by Chicoutimi in the first round (sixth overall) of the 2011 QMJHL Entry Draft and by Indiana in the fourth round (50th overall) of the 2011 USHL Futures Draft.
2011-12: Gregoire made the jump from midget to major junior – skating in 61 games for Chicoutimi in his first season – and represented Canada Quebec in the 2012 U17 World Hockey Challenge. He scored 15 goals with 15 assists and was -6 with 59 penalty minutes for the Sangueneens. Chicoutimi, after finishing fifth in the East Division, reached the QMJHL playoff semifinals. Gregoire scored 2 goals with 4 assists and was -3 with 14 penalty minutes in 18 playoff games. He scored 1 goal with 3 assists and had 2 penalty minutes in five games for Canada Quebec at the WHC.
2012-13: Gregoire returned to Chicoutimi after winning a gold medal with Canada’s squad at the 2012 Ivan Hlinka Memorial Tournament and began the year with the Sangueneens before a mid-season trade to Baie-Comeau. He appeared in 35 games for Chicoutimi, scoring 7 goals with 8 assists and was -10 with 71 penalty minutes before the trade. In 27 regular season games for the Drakkar he scored 12 goals with 5 assists and was +1 with 29 penalty minutes. After finishing first in the East Division, Baie-Comeau advanced to the QMJHL finals against eventual Memorial Cup champion Halifax. Gregoire scored 9 goals with 7 assists and was +3 with 27 penalty minutes in 18 playoff games. He was scoreless with 4 penalty minutes in five games for Canada at the Ivan Hlinka tournament. Gregoire was ranked 79th amongst North American skaters in the Central Scouting final rankings and was selected by Montreal in the sixth round (176th overall) in the 2013 NHL Draft.
2013-14: Gregoire was an assistant captain for Baie-Comeau in his first full season with the Drakkar and skated for the QMJHL All-Stars in the Subway Super Series against Russia. Baie-Comeau’s leading scorer, he had 35 goals with 34 assists in 65 regular season games and was +25 with 84 penalty minutes. The Drakkar finished first in the East Division and reached the QMJHL finals, falling to Val-d’Or. Gregoire scored 9 goals with 14 assists and was +3 with 35 penalty minutes in 22 playoff games. He had no points nor penalties in two games against Russia during the Super Series. Gregoire signed a three-year entry-level contract with Montreal in July 2014.
2014-15: Gregoire missed the first half of the season while recovering from a wrist injury, making his debut with Baie-Comeau on December 28th in a game against the Quebec Remparts. A team captain for the Drakkar in his fourth QMJHL season, he scored 20 goals with 21 assists and was +9 with 59 penalty minutes in 32 regular season games. Baie-Comeau finished fourth in the East Division and reached the second round in the playoffs. Gregoire scored 10 goals with 11 assists and was +12 with 18 penalty minutes in 12 playoff games.
2015-16: Gregoire skated in 62 games for Montreal AHL affiliate St. John’s in his first pro season. He scored 6 goals with 5 assists and was -5 with 70 penalty minutes. The IceCaps missed the AHL playoffs, finishing fifth in the North Division.
Gregoire is a player that can do all the little things right and goes under the radar, sometimes playing a rather underappreciated role. Not the fastest player on the ice, he is still mobile enough to keep up with the play and is defensively-responsible when it comes to breaking up plays and creating turnovers. He was able to put up points in Baie-Comeau with a high hockey IQ and smart positional work, and was well on his way to surpassing his total production in his final season in the QMJHL before his season was cut short. He will need to work on his skating if he wishes to play a more prominent role with the IceCaps, or he become a grinder who is willing to drop the gloves and defend his teammates.
Gregoire skated in a lower line role for the AHL's St. John's IceCaps in 2015-16, providing both toughness and supplementary scoring for the Canadiens' affiliate in his first pro season. Coming out of a Baie-Comeau junior program that is known for its hard style and strong two-way play, that figures to be Gregoire's role in pro hockey; though his offensive numbers may increase as he gains experience.