2008-09: Zach Trotman played for the Wichita Falls Wildcats of the NAHL. In 47 games, Trotman scored 2 goals and added 4 assists for 6 points. In 5 playoff games for the Wildcats, Trotman picked up 1 goal and 1 assist for 2 points.
2009-10: Trotman skated in 36 games in his freshman season at Lake Superior State. He scored 2 goals and added 6 assists for 8 points.
2010-11:Trotman was the fourth-leading scorer and led all defenseman at Lake Superior State in points as a sophomore with 6 goals and 14 assists in 38 games. Trotman was – 5 plus/minus and had 18 PMs playing for a Lakers squad that finished eighth in the 11-team CCHA.
2011-12: Trotman made his pro hockey debut with the Bruins’ AHL affiliate Providence after signing a two-year entry-level deal with Boston in March 2012 following his junior season at Lake Superior State. In nine late season games with Providence he scored 1 goal with 2 assists and was minus-four with 10 penalty minutes. Providence missed the AHL playoffs; finishing fourth in the Atlantic Division. Trotman played in all 40 games for Lake Superior State in his final college hockey season. He tied forward Domenic Monardo for third on the team with 11 goals and was minus-one with 10 assists and 12 penalty minutes. Six of his 11 goals were scored on the Lakers power play. After winning 10 of their first 16 games, the Lakers struggled to stay above .500 the rest of the season, finishing seventh in the CCHA and falling to Western Michigan in the league tournament quarterfinals.
2012-13: Trotman showed steady improvement in his first pro season with the Bruins’ AHL affiliate in Providence before missing time due to concussion issues in the second half of the season. In 48 games he scored 2 goals with 14 assists and was +4 with 19 penalty minutes. Providence finished first in the Atlantic Division and reached the second round in the playoffs. Trotman played in 4 of 12 playoff games and was +2 with no points nor penalty minutes.
2013-14: Trotman made his NHL debut with the Bruins in a December 28th game at Ottawa — one of two cameo appearances with Boston — during his second pro season. He had no points nor penalty minutes and an even plus/minus, averaging 15 minutes of ice time. Trotman skated in 53 regular season games for Bruins’ AHL affiliate Providence. He scored 8 goals with 16 assists and was +13 with 21 penalty minutes. Providence finished third in the Atlantic Division and reached the second round in the playoffs. Trotman had 4 assists and was -1 with 14 penalty minutes in eight playoff games. He was re-signed by Boston to a two-year contract as a restricted free agent in July 2014.
Trotman has gone from long-shot to the cusp of playing in the NHL on a regular basis. The last player taken in the 2010 NHL draft, he has steadily progressed in all areas of his game — particularly adding strength and improving his skating and passing skills. Originally seen strictly as a defensive defenseman, he has opened things up a bit and is consistently in the play and involved in the offense.
Trotman made the Bruins out of training camp in his fourth pro season and is playing for Boston in 2015-16. The Bruins have a ton of depth on defense but Trotman's steadiness with Providence makes him a candidate as a depth defenseman in Boston. His progress to this point suggests he is capable of handling a steady role at the NHL level.