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Isaiah Hartenstein

Oklahoma City Thunder
Number #55
Position F-C
Age 28
Height 7-0
Weight 250LBS
Draft 2017 R2 Pick 43
Nationality Germany
Born May 5, 1998
College / Team Zalgiris

Key Insights

2025-26
His team is at its best with him and Chet Holmgren out there together
Chet Holmgren

Oklahoma City Thunder are 11.7 points per 100 possessions better with him and Chet Holmgren on the floor together than when that pair sits.

+20.0 net rating together vs +8.2 apart, over 685 shared minutes. 95th percentile of 1864 qualifying duos, 2025 (both players rotation regulars).
This is the group that wins him minutes

With Shai Gilgeous-Alexander, Luguentz Dort, Chet Holmgren and Jalen Williams alongside him, that five outscores opponents by 34.0 points per 100 possessions.

134.7 offensive rating, 100.7 defensive, over 113 minutes, turnover hunters and protects the rim. 99th percentile of 237 qualifying five-man units, 2025.
Shai Gilgeous-Alexander beside him changes where he shoots from
Shai Gilgeous-Alexander

He takes more of his shots from mid-range when Shai Gilgeous-Alexander is beside him: 38% of his attempts, against 29% otherwise.

9.0 points of shot mix over 161 attempts together and 135 apart. 76th percentile of 4366 qualifying teammate pairs league-wide, 2025.
He is a far more efficient scorer with Ajay Mitchell beside him
Ajay Mitchell

He shoots 69.0% true shooting beside Ajay Mitchell, against 59.6% without him.

110 attempts together, 186 apart. 87th percentile of 4366 true-shooting shifts among qualifying pairs, 2025.
They work when they play, and the coach barely plays them together
Isaiah Joe

He and Isaiah Joe are +11.2 points per 100 possessions together, and share the floor for only 29% of the time the less-used of them is on it.

318 shared minutes, 650 possessions together. 93rd percentile of qualifying 2-man groups, 2025.
Put him out with Shai Gilgeous-Alexander and Chet Holmgren and the team takes off

With Shai Gilgeous-Alexander and Chet Holmgren, Oklahoma City Thunder are 13.9 points per 100 possessions better than when that trio is off the floor.

+22.7 net together vs +8.8 apart, 415 shared minutes. 96th percentile of 2805 qualifying trios, 2025 (all three rotation regulars).

All Lineup Combinations
Combine & Bio Data
DOB May 5, 1998
Birth Country Germany
Draft 2017 (R2 / P43)
College Zalgiris