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Thunder still have a crucial advantage with Isaiah Hartenstein's free agency looming

He had a strong set of first-round performances, but his success and importance is dependent on the system he's in.
Mar 27, 2025; Oklahoma City, Oklahoma, USA; Oklahoma City Thunder center Isaiah Hartenstein (55) reacts after a play against the Memphis Grizzlies during the second quarter at Paycom Center. Mandatory Credit: Alonzo Adams-Imagn Images
Mar 27, 2025; Oklahoma City, Oklahoma, USA; Oklahoma City Thunder center Isaiah Hartenstein (55) reacts after a play against the Memphis Grizzlies during the second quarter at Paycom Center. Mandatory Credit: Alonzo Adams-Imagn Images | Alonzo Adams-Imagn Images

Since the Oklahoma City Thunder signed Isaiah Hartenstein to a three-year, $87 million deal before the start of the 2024-25 season, it's proved to be worth every penny.

He's granted the Thunder the flexibility to start Chet Holmgren at power forward, operating as more of a rebounding and paint-anchoring presence while allowing Holmgren to float on both ends of the floor effectively. He fits neatly into Oklahoma City's tight defensive system, and he makes the right plays when it counts the most.

He has, in short, been an integral piece to the success they've found over the last two seasons.

But Oklahoma City has a decision to make this offseason. Hartenstein has a team option for $28 million. With the extensions for Holmgren and Jalen Williams kicking in, the Thunder will be hard-pressed to fit this number onto their cap sheet.

This playoff run, therefore, could have massive implications for Hartenstein's future, both in terms of his importance to the team and his value on the open market. Thankfully, his first-round performances have spotlighted a crucial Thunder advantage.

Hartenstein is one of the most impactful players in the league, but he needs to be in the right system.

Isaiah Hartenstein's market value could fluctuate, giving the Thunder a distinct advantage

Hartenstein's value extends deep beyond the box score. But for the sake of a thought exercise, let's take a look at his tangible stats through the Thunder's four-game sweep of the Phoenix Suns.

Game 1: 8 pts, 8 reb, 2 ast — 4-of-4 FG
Game 2: 9 pts, 10 reb, 2 ast — 3-of 6 FG
Game 3: 9 pts, 3 reb, 1 ast — 3-of-4 FG
Game 4: 18 pts, 12 reb, 3 ast — 5-of-7 FG

Outside of his miraculous Game 4 performance, Hartenstein's production in the first round was relatively pedestrian on paper. On the season, the outcome was relatively similar. Across 47 games, he averaged 9.2 points, 9.4 rebounds, and 3.5 assists while shooting 62.2% from the field.

Again, Hartenstein's importance to Oklahoma City's current system cannot be understated. But his market value, and his ability to match his $28 million team option in free agency, is hugely dependent upon team fit. For a team like the Suns, Boston Celtics, or Los Angeles Lakers, Hartenstein could be the piece that helps cement them as contenders in 2026-27.

For many of the other teams in the league, he would simply be a rebounding center without much consistent scoring upside. His health issues (he missed almost half the season with recurring calf issues) intensify this conundrum.

Is there a world in which the Thunder decline his team option only to bring him back on a more palatable, long-term deal? The reality is that it depends entirely on which teams might be seeking out his services this summer.

Boston could be looking to resign Nikola Vucevic at a cheaper number. DeAndre Ayton has a player option for $8 million for next season. If he opts in, Los Angeles could choose to simply play things out with their current core.

Therefore, as likely as it feels that Hartenstein would command close to $30 million this offseason if the Thunder were to decline his club option, there's a chance the particularities of his game make that a more difficult proposition this offseason.

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