Hartenstein accumulated 10 points (4-6 FG, 2-2 FT), 14 rebounds and three assists across 26 minutes during Wednesday's 120-96 loss to the Mavericks.
It was the third straight double-double for Hartenstein, who's been handling a bigger role in the frontcourt while Chet Holmgren (knee) is on the mend. Hartenstein produced 28 double-doubles in 57 regular-season games during his first campaign with the Thunder in 2024-25, but fell to 11 in 47 regular-season contests last season.