Ronald Acuña Jr. partners with Kalshi prediction market

Atlanta Braves outfielder Ronald Acuña Jr. has become the first Major League Baseball player to partner with a prediction market, signing a sponsorship deal with Kalshi. The announcement was made via a commercial aired during the semifinal conference game between the Atlanta Braves and the Los Angeles Dodgers.

Acuña Jr. joins a growing list of high-profile athletes, including LeBron James, Lionel Messi, and Giannis Antetokounmpo, who have established partnerships with prediction platforms. This trend reflects the expanding role of prediction markets as sports sponsors, with Kalshi already sponsoring five MLB teams.

The rise of these platforms has faced regulatory scrutiny in the United States. Unlike traditional sportsbooks, prediction markets like Kalshi and Polymarket operate under different regulatory frameworks, leading to legal challenges. For instance, the New York Attorney General is currently pursuing legal action against both companies regarding their operations.