2008-09: played in 68 games for the Portland Winter Hawks of the WHL. He finished the season with 37 points (9 goals, 28 assists) and 109 PIM. Ehrhardt also appeared in three games for the Manitoba Moose of the AHL.
2009-10: Ehrhardt spent the majority of the year in the AHL with the Grand Rapids Griffins, appearing in 42 games with 5 assists. The blueliner played 3 games in the ECHL with Toledo, scoring 1 goal and 1 assist.
2010-11: Spent his entire season on the Griffins roster, being inserted into the line-up sporadically. Ehrhardt scored 4 goals and 11 assists for 15 points in 52 games.
He is a good skater and has the size to compete physically at the pro level. Ehrhardt projects as a depth player in the AHL. He possesses a decent amount of skill, but it may not be enough to transition into the NHL. Does not have the proper hockey sense to become a consistent offensive threat.
Ehrhardt projects as a depth defenseman. He will have to show that he is capable of earning a full-time AHL role before he can move up the depth chart.