Isaiah Hartenstein has emerged as one of the NBA’s most reliable centers, delivering consistent impact on both ends of the floor in short order.
When he was still playing for the New York Knicks, Hartenstein showed so much tantalizing potential that teams like the Oklahoma City Thunder granted him a profitable deal, which indicated his deepening impact on the court.
Isaiah Hartenstein’s Contract With the Thunder
In July 2024, Hartenstein landed the biggest contract of his career, signing a three-year, $87 million deal with the Thunder. Out of that, $58.5 million is guaranteed, and he’ll be making about $29 million a year on average.
BREAKING: Isaiah Hartenstein is leaving the Knicks for the OKC Thunder — a 3-year, $87M deal, per @wojespn
Wow. pic.twitter.com/ES8qhbdF5f
— Legion Hoops (@LegionHoops) July 1, 2024
The good thing about this contract is that the final year (2026–27) is a team option, so it gives the Thunder some flexibility while still ensuring Hartenstein is financially set. It really shows how much the team values him, especially after he stepped up big in the playoffs and proved he could handle a bunch of different roles on the court.
Hartenstein’s Salary Breakdown
Hartenstein’s contract reflects his rising value to the Thunder. He is set to earn $30 million in base salary for the 2024-25 season, followed by $28.5 million annually through 2026-27 if Oklahoma City exercises its team option. The deal marks a significant jump from his previous contracts and positions him among the NBA’s top-paid centers.
The breakdown of his Thunder contract year by year is as follows:
- 2024–25: $30,000,000
- 2025–26: $28,500,000
- 2026–27: $28,500,000 (club option)
Hartenstein’s Career Earnings and Endorsements
Before joining the Thunder, Hartenstein had earned just over $52.9 million in his NBA career. With his new deal in Oklahoma City, his total career earnings are projected to surpass $116 million by the end of the 2026-27 season. That steady financial growth reflects his consistent development, expanded role on the court, and ability to seize key opportunities as his game has matured.
Off the court, Hartenstein has also built quite an interesting portfolio that adds to his overall wealth. He has stepped into the investor space, becoming a stakeholder in Happy Viking, the plant-based superfood nutrition brand co-founded by tennis icon Serena Williams. His involvement in an industry outside of basketball highlights his business acumen as he prepares for long-term success beyond his playing days.
Beyond his financial pursuits, Hartenstein remains active in philanthropic efforts and supports charitable causes through his work with the Hartenstein Foundation, further expanding his influence off the court.
For Hartenstein, these ventures — combined with his steady rise as one of the NBA’s most reliable big men — underscore both his value to the Thunder and his growing impact across the league.