Payton Pritchard scored 34 points Sunday to lead the Celtics to a season-ending win over the Charlotte Hornets, capping a breakout campaign that should earn him NBA Sixth Man of the Year honors.

Boston’s third guard finished the regular season ranked first in points and plus/minus, third in assists and tied for sixth in steals among all NBA bench players. He also was one of the league’s most prolific 3-point shooters, with only four players — including starters — making more threes than his 259.

“I feel like I put myself in the best situation possible to win (Sixth Man of the Year),” he said after Sunday’s 93-86 win at TD Garden. “I’m proud of that, and I feel like I’ve done my job as far as helping this team come off the bench and be a spark and try to be the best bench player in the league. At the end of the day, if I get voted for it, it’s an unbelievable award and would be a great honor, but at the end of the day, it’s out of my control if they vote for me or not. We’ll see, though.”

If he does take home the award, Pritchard would become the fourth Celtics player to do so, joining Malcolm Brogdon (2022-23), Bill Walton (1985-86) and Kevin McHale (1983-84 and ’85-86). Asked whether he’ll campaign for it, he replied: “There’s no need for that.”

“If I get it, it’s not going to stop my journey,” said Pritchard, who played in a team-high 80 of Boston’s 82 games. “It’s not going to stop the work I’m going to put in. This would just be another stepping stone. People could write about it if I get it, saying I have an award, but at the end of the day, I feel like I’m just looking to keep growing and growing. And I feel like the future, I don’t know what that holds.”

Earlier this month, Pritchard signed his first sneaker deal with Converse — another sign of his ascension from anonymous bench player to bona fide NBA star. He also gets a cut of the “Pritch Please” T-shirts and hoodies that have become increasingly prevalent around TD Garden.

“I hope it represents that I’m on the right path, that my hard work is taking me to these places,” Pritchard said of his elevated profile. “So for me, it just shows that I shouldn’t stop what I’m doing and continue every day to get better and better, and things like this that you never thought maybe were going to happen open up to you. So, like I said, you never know what the future can hold.”

Just three Celtics rotation players suited up for Sunday’s finale: Pritchard, Sam Hauser and Luke Kornet. Pritchard and Hauser both shot better than 40% from 3-point range this season, and Kornet enjoyed a career year as Boston’s third-choice big man behind Kristaps Porzingis and Al Horford. All three are expected to have meaningful roles in the postseason.