The 2010–11 season was Dubnyk's first full season in the NHL, beginning the year as Nikolai Khabibulin's backup. Injuries to Khabibulin, however, combined with strong play from Dubnyk, resulted in the latter registering over 30 starts for the Oilers. Dubnyk ultimately finished the season with a 12–13–8 record for a last-place Oilers squad, impressing the Oilers coaching staff. Then-Edmonton Head Coach Tom Renney summed up Dubnyk's season: "As much as we had an idea of how much we wanted to play him, we've played him more, and he's made the best of it." On February 7, 2011, Dubnyk earned his first career shutout after stopping 37 shots in a 4–0 win against the Nashville Predators. He closed out his season by earning back-to-back wins against the President's Trophy-winning Vancouver Canucks, stopping 46 of 47 shots against in the process.