Isaiah Hartenstein has settled into Oklahoma City exactly the way the Thunder needed him to.
Across two seasons, the 2025 Thunder champion has given the roster something you can’t fake: physicality, a sharp basketball IQ and a steady veteran presence in the middle of a young team. He has mattered on the floor, where he impacts the game even without stretching defenses as a shooter, and he has mattered everywhere else, too.
The basic numbers look solid enough for a starting big. In 104 appearances and 99 starts with the Thunder, Hartenstein has averaged 10.3 points, 10.1 rebounds and 3.7 assists.
But those numbers only tell part of the story. His screening, his size, his strength and the way he helps organize younger teammates have made him one of Oklahoma City’s most valuable pieces.
"If you wanna win a championship, there’s gotta be sacrifices," Hartenstein said after Game 1 of the 2025 NBA Finals. "That's what I'm ready to do.
If it's sacrificing minutes or sacrificing what I want to do on offense or defense. Whatever the team needs."
That mindset still fits now that he has a new deal keeping him under contract with the Thunder through 2029. The expectations on him remain the same, and maybe even more important, because this version of the roster could lean harder on younger players than the one before it.
Hartenstein has already shown how useful he can be for that kind of group. He’s helped the young guards around him, with Ajay Mitchell standing out in his second-year breakout.
Mitchell and Hartenstein posted a +18.2 net rating together last season, and the fit was obvious on the floor. Both players can threaten defenses with floaters, which often leaves one of them open for a push shot.
His value shows up in the little things that bend an offense. Hartenstein is a high-level screener, and that opens space for guards like Mitchell and Jared McCain to loop around him and get the looks they want. McCain and Hartenstein built a strong connection during the playoffs, with the Duke product finding plenty of open 3-point chances off Hartenstein’s screens and passes.
That same pattern could help rookie point guard Bennett Stirtz, too. Stirtz brought high pick-and-roll promise through his four years in college, and he should benefit from playing next to the Thunder’s best screener right away.
The Iowa product also showed strong movement shooting, which gives Hartenstein another option in dribble-handoff actions. Hartenstein has already used that kind of setup with McCain and Isaiah Joe during his Thunder run.
Now entering his third season with the franchise, Hartenstein’s role still looks as essential as ever.
In Other News...
Russell Westbrooks Retirement Just Sparked A Debate Thunder Fans Know Well
Russell Westbrooks retirement after 18 NBA seasons immediately reopened a familiar conversation for Thunder fans: how history remembers one of the franchises most electrifying stars. A one-time MVP and nine-time All-Star, Westbrook left behind a rsum that guarantees his place in league lore, but his final years were always going to invite debate about how his game aged and how the sport viewed him once the title chase was over.
Patrick Beverley added another layer to that discussion, pointing back to the long-running tension and overlap between the two guards. Their rivalry goes back to the 2013 playoffs, and they eventually became Lakers teammates, which only made Beverleys reaction more notable when he weighed in on Westbrooks exit from the game. For Oklahoma City, it is the kind of aftermath that comes with a player who meant so much for so long, especially when the questions around his legacy are still very much alive. [Read more 🡒]
Thunder Champion Ajay Mitchell Just Took On A Surprising New Role
Ajay Mitchells offseason already had one championship memory attached to it, but the Thunder guard has added a different kind of responsibility. The 24-year-old, fresh off Oklahoma Citys 2025 NBA title, has been named general manager of UC Santa Barbaras basketball program, a move he confirmed while emphasizing his commitment to helping the Gauchos and supporting head coach Joe Pasternack.
For a player still building his NBA career, the appointment is an unusual twist, but it also fits the modern way college programs are expanding their support systems and tapping into wider basketball networks. Thunder general manager Sam Presti had positive things to say about Mitchell stepping into the role, which only adds to the curiosity around how much influence he can bring from both the NBA and his own college connections. [Read more 🡒]
Thunder Long Term Center Plan Suddenly Feels Far Less Settled
Oklahoma Citys long-term picture at center looked a lot clearer after the Thunder used their 2026 lottery pick on Aday Mara, a prospect whose appeal comes from his shot-blocking, feel for the game and ability to pass. He gives the front office another young big to develop alongside Isaiah Hartenstein and Thomas Sorber, while also adding a different look to a position the Thunder have been willing to keep flexible as they build around the rest of the roster.
Still, Mara is not the sort of pick that closes the book on the center spot. His conditioning questions and concerns about his interior scoring leave some room for the Thunder to keep evaluating the position, especially with another future lottery pick in hand. For a team that has tried to stay ahead of roster decisions rather than react to them, that means the path at center may be defined as much by what comes next as by the player they just took. [Read more 🡒]