BOSTON – Jayson Tatum admitted there was some frustration after what he called a “terrible miss” at the end of regulation. The score was tied between the Celtics and Raptors, as Tatum had a chance on an open mid-range jumper that would have been the game winner.

But it doesn’t matter. Life finds a way. The Celtics and Tatum found themselves in the same spot at the end of overtime. This time, Tatum hit a deep three-pointer as the buzzer sounded, sending the TD Garden crowd into a frenzy. So no harm done after that first miss as the Celtics defeated the Raptors in an overtime thriller 126-123 on Saturday. And make no mistake, confidence wasn’t the problem for Tatum when he stepped up for the game-winner.

“I have a lot of problems in life – self-confidence has never been one of them,” Tatum said. “I’ve worked too hard at my craft and played too much basketball to ever doubt the next shot, whether it’s an in-and-out shot. -out miss or I miss the entire edge. I know what I am capable of and you always believe that the next one will succeed.

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Tatum started the night strong, going 4-for-7 in the first quarter for 13 points. The C’s were in a dogfight against a Raptors team looking for a spark, and Tatum was a big part of that first wave. But the shots dried up from there as Tatum shot 1-for-9 in the final three quarters, including that miss at the end of regulation time. Tatum finished with 24 points, 11 rebounds and nine assists in another close miss on a triple-double.

But the Celtics had enough power to keep the game going on Saturday. There were 27 lead changes as the teams traded leads throughout the overtime period. So while the Raptors came in with one of the worst records in the league, as has been common for the C’s for years, they got Toronto’s best opportunity.

The winning game itself was also somewhat disrupted. Initially, Tatum got the ball from Derrick White. Then Jaylen Brown ran out of the corner to get the ball from Tatum, but Brown was knocked over after heavy contact from Davion Mitchell. Brown fell to the ground when Tatum thought a foul was going to be called. But when the whistle didn’t blow, Tatum decided he would take the final shot – and he did.

So the Celtics will learn from Saturday’s win. There is great value for great teams to not only win ugly, but to do so on a bad night. And Tatum was a big part of that, as the Celtics are now 11-3 on the season. They now have a huge test on Tuesday against the Cavaliers, who are still undefeated at 14-0 and atop the East.

“Every kid growing up, in the driveway, at a gym or in a park, would count down out loud and imagine themselves in a moment like this,” Tatum said. “For me, I’ve always wanted to be part of those moments and never have to worry about if you miss something or things like that. I have never been afraid of the outcome, good or bad. My favorite players that I grew up watching had moments like this where they made them and missed them. But they were always willing, no matter how the game went, to be there in that moment and be brave, I think, in those moments.