2009-10: Ebert played for the USHL's Waterloo Black Hawks following an impressive performance at USA Hockey's Select 15 Development Camp in July. In 53 games with Waterloo he scored 6 goals with 12 assists and was an even plus/minus with 26 penalty minutes. The Black Hawks reached the playoffs after finishing fourth in the East Division but were swept by eventual Clark Cup champion Green Bay in the first round. In three playoff games Ebert scored 1 goal and was minus-two. He was selected by Mississauga St. Michael's in the first round (17th overall) of the 2010 OHL Priority Draft.
2010-11: Ebert jumped from the USHL to the OHL – joining the two-time defending Memorial Cup champion Windsor after a trade between the Spitfires and Mississauga St. Michael's. Playing alongside Ryan Ellis, the OHL's top scorer amongst defensemen, Ebert had a solid first year. Ebert played 64 games for the Spitfires and was minus-two with 11 goals and 30 assists and had 44 penalty minutes. Windsor finished second in the West Division and advanced to the conference finals. In 18 playoff games Ebert scored 1 goal with 2 assists and was minus-two with 6 penalty minutes.
2011-12: Ebert had an up-and-down season in his second year with Windsor as the Spitfires slipped to fourth in the West and were swept by London in the first round of the playoffs. In 66 games for the Spitfires he scored 6 goals with 33 assists and was minus-two with 58 penalty minutes. In the four game series with the Knights he had 2 assists and was minus-three with 8 penalty minutes. Ebert was invited to the NHL Draft Combine and ranked 96th amongst North American skaters in Central Scouting's final rankings prior to the 2012 NHL Draft.
Ebert, once a top-rated 2012 draft prospect, fell out of favor as the 2011-12 season progressed. The positives for Ebert are his skating ability and his booming shot, but he doesn't seem to use either effectively. Ebert seems to lack the hockey sense necessary to be even a middling defender at this point, although there is still talent there that could develop into something. But he has to be better in his own zone and learn to make better use of his strengths.