Less than six months since Polymarket became the exclusive prediction-market partner of Major League Baseball, seven individual teams now have prediction-market agreements of their own—including five with Kalshi.

Kalshi came out swinging on Tuesday, unveiling exclusive, multiyear “brand partnerships” with the Braves, Red Sox, Dodgers, Padres, and Giants. That means Kalshi now has commercial relationships with one-sixth of the 30 MLB clubs. Under the deals, Kalshi will be featured on in-stadium signage, in social media posts, and more. As part of the deal with the Dodgers, the Gold Glove Bar at Dodger Stadium is being renamed the Kalshi 435 Club.

Kalshi says baseball-related trading volume on its platform is 36 times higher than it was a year ago.

“The idea is that fans are already engaging with their favorite teams on Kalshi, so it only makes sense to extend that fandom to some of the most beloved baseball teams in America,” Kalshi’s head of sports partnerships, Adam Barrick, said in the press release.

The Red Sox, Dodgers, and Giants have since issued their own press releases confirming the agreements.