The Western Conference Finals matchup has a 'felt destined' quality to it, and the regular-season tape backs that up. The San Antonio Spurs beat the Oklahoma City Thunder four out of five times this year, including a statement win in the NBA Cup semi-finals when Oklahoma City was 25-1, two Christmas-week meetings, a Thunder blowout in January and a closing-night Spurs win in San Antonio. ThreeCone's deep dive on Saturday treated the series as the start of an era — and walked viewers through the numbers that will probably decide it.
The first big one is the playoff baseline. The Thunder, even without Jaylen Williams for most of the postseason, are 8-0 with the best offence (number one in playoff offensive rating), a sixth-ranked defence and the second-best net rating of any team alive. The Spurs counter as the third-ranked offence, the best defence, and the third-best net rating. There is essentially nothing separating these teams statistically.
The first key on the board is Shai Gilgeous-Alexander versus Stephon Castle. ThreeCone's prediction is that San Antonio will not copy the Lakers' decision to send straight doubles every time Gilgeous-Alexander touches the ball. That approach forced turnovers but also let Oklahoma City's shooters — Chet Holmgren, AJ Mitchell, Isaiah Joe, Jared McCain — feast in space. The Spurs have the personnel to play it more honest. Castle defended Gilgeous-Alexander across the regular season and held him to 18.2 points per 75 possessions on 52.8% true shooting. When Gilgeous-Alexander escaped Castle in those four games, he posted 30 points, five rebounds and five assists on 51% shooting — but just 19% from three.
That sets the chess match. Castle has the size to handle Gilgeous-Alexander without consistent help, which lets the Spurs keep Victor Wembanyama parked at the rim. Gilgeous-Alexander will need to hit outside shots to drag Wembanyama away from the basket, or he will be living in a paint that has Wembanyama waiting in it.
There is one number that haunts the Spurs side of that matchup. Castle is averaging four fouls per game in this postseason, has fouled out twice and is one early whistle away from losing the assignment to a lesser defender. Gilgeous-Alexander leads the league in drawing contact. ThreeCone's worry: 'If he goes away, they lose their best option.'
The Thunder's chess piece is Holmgren. The Spurs' chess piece is the Wemby-Holmgren rivalry itself. The two big men have history that traces back to U-17 international play — Holmgren got the better of those meetings — and the Western Conference Finals will be the first time they meet in a true playoff series. Holmgren is now an All-Star, finished second in Defensive Player of the Year voting and is set to make his first All-NBA team. Wembanyama just won his first Defensive Player of the Year award and is the consensus best player in basketball alongside Gilgeous-Alexander. Whoever comes out of this series is going to be most people's choice as the best player in the world entering the off-season.
The rest of the matchup hinges on a few quieter variables. Dylan Harper and Stephon Castle have elevated themselves into legitimate first and second-year guards. Luke Cornet is the bigger backup the Spurs have been waiting for. Darren Fox has had moments but has been up and down. Devin Vassell and Keldon Johnson have to play their roles. On the other side, Williams' hamstring is the single biggest health swing in basketball — without him, the Thunder's depth gets thinner, with him, they get a third creator that San Antonio cannot match.
ThreeCone's read is that this is the first of many. Two teams, both young, both deep, both anchored by generational defensive bigs and ball-dominant guards. Game 1 tips on Monday night in Oklahoma City. The conference is destined; the title might be, too.
---
*Originally published on [NBA News Global](https://nbanews.global/article/spurs-thunder-western-conference-finals-castle-sga-wemby-chet-tactical-preview-may-2026). Visit for full coverage.*
