Geno Smith lost the Snoopy Bowl, but he won the Jets’ starting quarterback job.

After the Jets’ 35-24 preseason loss to the Giants on Friday night, coach Rex Ryan made it official — Smith will start the season opener against the Raiders on Sept. 7.

It did not come as a surprise, as Smith has been the expected starter all offseason, but Ryan had refused to say Smith would be the starter — and Michael Vick the backup — until Friday night.

“He’s done everything that we’ve asked and, again, this is no slight to Mike Vick,” Ryan said. “Believe me, like I said, I wanted to come out of this knowing we had two really good quarterbacks that we think we can win games with. In my heart, I feel that we have two that we can with.”

Smith has shown major growth this preseason, and that was apparent against the Giants.

A year ago, Smith had one of his worst moments in the annual preseason meeting with the Snoopy Trophy on the line, when he threw three interceptions and stepped out of the back of the end zone for a safety. This time around, Smith was poised and decisive. He completed 9-of-14 passes for 137 yards and a touchdown in one half of work. He finished with a quarterback rating of 120.2.