MLB Caps “Micro-Bets” to Protect Game Integrity

Author: Mateusz Mazur

Date: 11.11.2025

Major League Baseball (MLB) announced immediate new safeguards to limit pitch-level betting markets, collaborating with its sportsbook partners to reduce integrity risks.

These new measures cap wagers on the specific “micro-bet” markets at $$200 and prohibit their inclusion in parlays. The change affects sportsbook operators that represent over of the regulated U.S. betting market, and is designed to mitigate the incentive for player misconduct.

Response to Pitch-Rigging Allegations

The league’s decision follows the indictment of two Cleveland Guardians pitchers, Emmanuel Clase and Luis L. Ortiz, on charges related to an alleged scheme to rig bets on pitches.

The prosecutors in Brooklyn, New York, accuse the players of deliberately altering pitches, such as throwing balls, to allow gamblers to place profitable prop bets. Both players pitched for the Guardians this past season.

Pitch-level markets, which include bets on outcomes like balls vs. strikes or pitch velocity, carry heightened integrity risks. Unlike most prop bets that involve multiple actors and events, these wagers focus on single, specific events that can be determined by just one player and may be inconsequential to the final result of the game.

Limiting the bet amount and banning parlays significantly reduces the potential payout, directly diminishing the financial incentive for players to engage in misconduct.

League and Regulatory Support

Commissioner Rob Manfred stated that the league’s most important priority remains protecting the integrity of baseball for the fans. He commended Ohio Governor Mike DeWine for his leadership in addressing the issue and praised the industry for cooperating on a national solution.

Governor DeWine echoed this sentiment, stating, “By limiting the ability to place large wagers on micro-prop bets, Major League Baseball is taking affirmative steps to protect the integrity of the game and reduce the incentives to participate in improper betting schemes.” He urged other sports leagues to adopt similar action.

Christian Genetski, President of FanDuel, an official MLB sportsbook partner, confirmed the industry’s commitment. He noted that the initiative “illustrates our unwavering commitment to building a legal and regulated market that roots out abuses by those who seek to undermine fair competition.”

The new safeguards align with MLB’s standing regulations on betting. MLB Rule 21 states that any player, umpire, or club/league official or employee who places a wager on a baseball game in connection with which they have a duty to perform will be declared permanently ineligible to participate in professional baseball.