Yandy Díaz‘s walk off Cam Booser in the bottom of the 11th inning of Game 4 lasted maybe 10 seconds on the scoreboard. The at-bat that preceded it carried weeks of baggage: a disputed checked-swing call, the World Series debut of the ABS challenge system, and a Venezuelan catcher hitting .394 this postseason. Tampa Bay didn’t score in the 11th, but the game stayed alive into the 12th, when Ben Williamson sent Tropicana Field into a frenzy with a walk-off single — Rays 4, Brewers 3.
The Play That Made This Personal
To understand the weight of that 11th-inning matchup, you have to go back to Game 2, October 24 at Tropicana Field. Tampa Bay was trailing 5-4 in the ninth, two outs, runner on third. Díaz at the plate. The pitch came in, the home plate umpire didn’t ring him up — and that’s when Contreras turned toward first base umpire James Hoye and appealed on a possible checked swing. Hoye ruled that Díaz had gone around. Ballgame. Brewers 5-4.
What made the moment so polarizing wasn’t whether Díaz swung or not — that’s genuinely debatable, and Díaz himself accepted the call — but the mechanism. Checked swings aren’t reviewable by replay. The base umpire has the final word, no technology, no second look. Contreras knew that, and he used it.
Four Days Later, Same Two Guys
With the score tied 2-2 in the 11th, those two men met again at home plate. The ABS challenge graphic flickering on the scoreboard added another layer: this is the first World Series played with that system active, allowing batters and catchers to contest ball-and-strike calls — though, important clarification, it does not cover checked swings. Díaz drew the walk. Manager Kevin Cash replaced him with pinch runner Jorge Mateo. Tampa didn’t score.
There was one more wrinkle: earlier in Game 4, Tyler Wells had gotten Díaz out with Contreras behind the dish, meaning the catcher had been watching him all night before they squared off in the most important moment of the game.
Two Completely Different Approaches to the Same Rectangle of Rubber
Contreras and Díaz represent opposite philosophies at the plate this October. The Milwaukee catcher has been one of the most aggressive users of the ABS challenge on behalf of his pitchers all postseason long. Díaz, meanwhile, let 59 challenge opportunities pass during the regular season without using a single one — the highest total in all of baseball.
On the defensive side, Contreras has also broken a record that nobody had on their radar: he’s the first catcher to throw out three baserunners attempting to steal within the first three games of a World Series since Darren Daulton in 1993 — a 33-year gap.
Milwaukee Still Leads 3-1, but Tampa Is Alive
The Brewers came into Game 4 up 3-0, one win away from their first championship in 44 years. They couldn’t close it out. Williamson, who was 1-for-15 in the postseason before that plate appearance, laced a walk-off single in the 12th to keep the Rays breathing: 4-3, series now 3-1.
The Contreras-Díaz duel didn’t end at Tropicana Field that night. If there’s a Game 5, those two will see each other again — and now they both know exactly what the other is capable of.
The Numbers Behind William Contreras
Contreras doesn’t show up in the postseason conversation by accident. Here’s what Statcast has on him for the 2026 season:
- 640 plate appearances in 2026
- 18 home runs, 94 RBI
- AVG: .270 | OPS: .758
- xwOBA: .334 (expected production based on quality of contact)
- Average exit velocity: 90.3 mph
- Barrel rate: 8.5%
- Hard-hit rate: 44.1% (balls hit 95 mph or harder)
- Average bat speed: 73.6 mph
- Squared-up rate: 90th percentile (elite)
