MLB Sets $200 Limit on Microbets and Bans Their Inclusion in Parlays

Major League Baseball (MLB) has announced new restrictions on certain in-game betting markets as part of its ongoing effort to preserve the integrity of the sport. The new rules — supported by the largest U.S. sportsbook operators — significantly reshape the approach to so-called microbets.

What’s changing?

The restrictions target wagers placed on individual in-game events such as whether a pitch will be a strike or a ball, or the speed of a specific pitch.

According to MLB, these types of bets pose the highest integrity risks, since their outcome depends on the actions of a single player and may not directly influence the game’s final result — making them vulnerable to manipulation.

Under the new policy, all official betting partners of MLB must:

• Impose a $200 limit on each microbet;
• Prohibit the inclusion of these wagers in parlay bets.

Why it matters

MLB Commissioner Robert D. Manfred Jr. explained that since the legalization of sports betting in the United States, the league’s top priority has been protecting the fairness and integrity of the game.

“Microbets carry a disproportionate level of risk because large sums can be wagered on brief, low-impact moments,” Manfred said. “By sharply capping potential winnings, we remove the financial incentive for misconduct.”

Gambling Park notes that MLB’s decision follows a recent criminal case involving pitchers Emmanuel Clase and Luis Ortiz, who are under investigation for alleged betting-related manipulation.