He began the five-game road trip in Denver with a 2-for-14 shooting night, vowing afterward to be better.

Last night Paul Pierce ended his largely uneven journey with a Tour de Truth performance, saving his best for last in the Celtics’ 110-107 overtime victory against the Jazz.

After missing a twisting 19-footer at the buzzer in regulation, the captain clanged no more. He made all three of his shots in the extra frame, scoring seven of the Celts’ 13 points and finishing with 26.

Asked about the perfect punctuation to Pierce’s up-and-down trip, Doc Rivers said, “He had an up-and-down game tonight. He was struggling, and then all of a sudden he just kind of reached down.

“He’s just a great player, and that’s what great players do. He was exhausted, and you could just see it. He just reached down and grabbed it from somewhere and made shots for us. We needed it. We wouldn’t have won without that.”