With Hunter once again behind the bench, the Knights continued their winning ways in the 2012–13 season, handily leading the league with 105 points in the regular season en route to their second-straight Hamilton Spectator Trophy. They then cruised through the first three rounds of the playoffs, defeating the Saginaw Spirit, Kitchener Rangers and Plymouth Whalers in four, five and five games respectively. The Knights capped their OHL season with a thrilling game seven win over the Barrie Colts as Bo Horvat scored the game-winning goal in the last second of the third period to capture the Knights' second consecutive J. Ross Robertson Cup. At the 2013 Memorial Cup the Knights finished 1–2 in the round robin, forcing them to play a tie-breaker against the host Saskatoon Blades. Though the Knights handily defeated the Blades 6–1, they lost to the Portland Winterhawks 2–1 in the semifinal.