Spurs’ X-factor that will dethrone Thunder in 2026 Western Conference Finals

The Western Conference Finals matchup between the San Antonio Spurs and the Oklahoma City Thunder is arguably the best we’ve had in years. The best two teams in the West, facing off in a best four-out-of-seven series to advance to the NBA Finals, is the best sub-genre of matchups in sports.

But this matchup has even more intrigue because of the makeup of these rosters. Both the Spurs and the Thunder have one of the two best players in the league in Shai Gilgeous-Alexander and Victor Wembanyama. Around their stars are two co-stars who can take over the game: Jalen Williams and Chet Holmgren for OKC, and De’Aaron Fox and Stephon Castle for San Antonio.

They even share a parallel with their bench. Thunder guard Ajay Mitchell’s high level of play this postseason is matched by Dylan Harper’s ascension to a reliable playoff sixth man for the Spurs, leaving people wondering why he’s not in the starting lineup. On paper, and 48 hours before the start of the series, it’s hard to determine a winner.

The safe bet would be to rely on the Thunder’s experience, who are indeed the reigning NBA champions. They arguably put together a stronger season than their championship year in 2025. But it’s not absurd to say that Victor Wembanyama continues his phenomenal first playoff run by dispatching the superpower of the Western Conference and making the NBA Finals on his first try. At this point, before the games take off and the players matchup on the hardwood, there’s truly no wrong answer in discussing this series.

But if the Spurs do indeed want to upset the Thunder, the X-factor won’t solely be Victor Wembanyama. The true X-factor will lie in the team that surrounds him.

The Spurs’ X Factor: Athleticism & Roster Depth

It’s easy to say that the star player is not truly the most important person in the series. We know throughout history that your transcendent star players need help in putting together wins. But the Spurs’ supporting cast around Wembanyama is perfectly equipped to match up with arguably the biggest strength of the Thunder: their size and athleticism. These teams are very similar, which could bode well for the Spurs.

The Thunder are the quintessential example of a perfectly built modern-day NBA team because their rotation has size, length, speed, verticality, and offensive and defensive skill that overwhelm teams. Their shooting prowess also penalizes opponents for blitzing Alexander to stop his patented drive to the basket.

But something interesting happened in the Thunder’s most recent series against the Los Angeles Lakers. Many will look at the box score and rest on the fact that the Thunder were the better team, sweeping a Luka Dončić-less Lakers in the most expected finish of the second round. But what people will ultimately fail to see is the defensive scheme that JJ Redick employed to give Los Angeles a puncher’s chance against the defending champions.

On defense, the Lakers nearly perfectly employed an ABS strategy: anybody but Shai. They constructed their man-to-man and zone defense schemes to prevent Alexander from being the one who beats them in the series. Redick’s bet was that if you cut off the head of the snake, you could neutralize the offensive attack and perhaps win the game.

But where the Lakers lacked was speed and athleticism, as well as a reliable offensive punch without Luka Dončić. Austin Reaves struggled significantly and couldn’t provide the offensive punch that LeBron James and Rui Hachimura needed to truly contend with the Thunder. And on the other end, the Lakers simply weren’t quick enough in their defensive schemes to stop the Thunder from getting the open or lightly contested three-point shots that ultimately kept them in the game and separated them from the Lakers.

Respectfully, the Spurs are not the Lakers of this year. In the Timberwolves series, they proved they can play aggressive, physical playoff defense and that their defensive rotation can stifle star players. While Minnesota is not a prolific three-point-shooting team, ranking in the middle of the pack in the playoffs at 33.8% from behind the arc, the Spurs showcased an aggressive defense that left the Timberwolves scratching their heads about how to solve them.

It wasn’t just Victor Wembanyama blocking and contesting shots. It was Stephon Castle, Dylan Harper, and Julian Champagnie who found ways to knock Anthony Edwards off his game and stifle a Timberwolves offense that seemed to find its groove in its upset over the Nuggets, thanks to Jaden McDaniels and Julius Randle.

While I don’t think the Spurs will totally be able to shut down the Thunder, I believe they have the tools to do something similar to what the Lakers did in the second round. Even when Jalen Williams is fully healthy, a defensive rotation keyed in on limiting Shai as a scorer could be productive. And I believe the Spurs have the roster construction to do just that and match up with the Thunder.

It’s going to be an interesting series that captures the attention of the sports world and likely previews what the next five to ten years will be like in the Western Conference. But don’t count the Spurs out. What they lack in experience, they make up for in roster depth and athleticism.

The Thunder are looking in a mirror, and potentially at the next champion of the NBA.

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