Playoff Prospects: Can The Boston Celtics Win It All?

In this series, we’ll take a look at each NBA team that’s gunning for a deep playoff run. We’ll try to predict the players that will have the biggest impact, as well as the ceiling for each squad in the 2026 postseason.

If there was ever an award that recognized an NBA team defying all expectations, it would have to go to this year’s Boston Celtics.

Coach Joe Mazzulla and his Beantown boys heard it all: the Eastern Conference is wide open, the Celtics would be lucky to hold a playoff berth, Jaylen Brown can’t do it by his lonesome. Since October, the Celtics methodically and emphatically picked apart every critique hurled their way.

As it turned out, a handful of teams set themselves apart in the East, and Boston is one of them. After hitting their stride, the Celtics positioned themselves within the top three; and, for several weeks, they’ve safeguarded the no. 2 spot against the threat of the New York Knicks. Perhaps most remarkably, Jaylen Brown built the strongest MVP case of his career as he stuffed the stat sheets before (and even after) the conclusion of Jayson Tatum’s recovery process.

Now, the Celtics are staring at a completely different set of expectations. This time, NBA fans are anticipating their playoff journey to go very, very far.

None of this would have been possible if it weren’t for the excellent season that Jaylen Brown hasn’t been having.

Brown knows exactly what it feels to be doubted. He would have been a great addition to the 2024 Olympic team, but he didn’t make the lineup. He took home the 2024 Finals MVP trophy, but many observers claimed that it should have gone to Tatum.

The Marietta, Georgia native is well-spoken (whether on live streams or in forums and Hollywood events), but this season, Brown did his most eloquent talking through the verbiage of his hardcourt performance. Dropping 30-pieces left and right, Brown didn’t just help the Celtics survive. Thanks to Brown, the Celtics have thrived as a regular season powerhouse. In the playoffs, there’s no reason to think that Brown will veer from this type of dominance.

Right around the trade deadline, there were a number of moves that drew plenty of attention on social media and on TV. For some reason, the significance of Nikola Vučević going to the Celtics was understated.

Vučević is a perfect piece for the Celtics in the postseason. He’s a 15-year veteran with playoff experience, and he can give quality minutes when Mazzulla has to lengthen his rotation. Vučević has been a consistent double-double threat for over a decade, and his contributions off the bench can tip the scales in a tight series.

Whether the Celtics face a team like the Toronto Raptors or the Philadelphia 76ers in the first round, they’ll enter as favorites to advance via clean sweep or gentleman’s sweep.

The real fireworks will start to go off in the second round, when they will likely face the New York Knicks. Jalen Brunson and his crew have a different look on offense, but the Celtics have staked their claim as a top-5 defense in the league. This series could go the distance, and it appears that the Celtics have the edge here.

In the Eastern Conference Finals, there’s a chance that the Cleveland Cavaliers will outlast the Detroit Pistons (if only for the fact that Cade Cunningham might not be in tiptop shape). If the Cavs do face the Celtics in the conference final, Tatum and Brown will likely outshine Donovan Mitchell and James Harden, who has a track record of disappearing in crucial games.

On the grand stage of the NBA Finals, the Celtics will probably stare down the Oklahoma City Thunder as their final obstacle to the Larry O’Brien trophy. This will be another epic seven-game series, one that will come down to a battle of attrition. 

In the end, Boston might be done in by, of all things, health issues. Prior to the start of the playoffs, a number of Celtics are dealing with injuries: Brown’s Achilles, Derrick White’s knee, and Sam Hauser’s back, not to mention the potential question mark that is Tatum’s durability. In contrast, the Thunder’s roster (specifically, their physical anatomy) appears to be more intact heading into the postseason.

The Celtics and the Thunder are extraordinary teams on both ends of the floor, but OKC could very well emerge as back-to-back champions when the dust settles in Game 7.