Ron Harper Jr. is staying with the Celtics on a three-year, $9 million deal after Boston declined his $2.6 million option on June 27, 2026. The move keeps a rotation piece in place after a season split between a limited NBA role and far bigger numbers in the G League.
Harper’s previous salary slot would have landed at about $2.6 million next season, and that figure would have totaled a little over $8.5 million across three years. The reported deal gives Boston a slightly higher commitment while avoiding a short-term one-year decision.
Ron Harper Jr. and Boston
He arrived in last September on an Exhibit 10 contract, moved to a two-way deal before the 2025/26 season began, and then got converted to a two-year standard contract in early April. By the end of the year, he had become a semi-regular part of the rotation.
Harper appeared in 29 total games for Boston in the 2025/26 season and averaged 4.0 points and 1.7 rebounds in 11.0 minutes per contest. He shot.418/.350/.750 in that stretch, enough to give the Celtics a low-cost wing option they could keep under contract without restarting the roster search.
Maine Celtics Production
The more striking line came with His G League work for the Maine Celtics. In 18 games, he averaged 25.4 PPG, 5.1 RPG, 3.6 APG, 1.3 SPG and 1.3 BPG while playing 31.2 minutes a night.
He also shot.474/.387/.754 and took 10.8 attempts per game from deep, making 4.2 of them. That gap between his NBA output and his NBAGL scoring load is why this deal reads as more than a simple retention move: Boston is paying for a player whose role was still expanding.
Three-Year Celtics Commitment
Shams Charania of reported the contract details. The reported three-year, $9 million structure locks in Harper for a roster spot that had been earned in stages, from a last September Exhibit 10 signing to early April standard-contract status.
The only number that still invites a closer look is the exact salary line inside the deal. His projected minimum for next season sat at about $2.6 million, so the reported $9 million figure points to a contract that edges above the minimum path while keeping Boston’s commitment relatively modest. For Harper, the pay raise comes with the same practical result that matters most: a multiyear place in Boston in the NBA.
