RECAP: ⚡ Sports prediction markets got a major boost this week as the MLB embraced the sector just as regulators turned up the heat. Can the industry’s legitimacy push outpace the blow back? Read on for the full picture. 👇🧵 1/7

⚡ MLB Made Its Move On March 19, Major League Baseball named Polymarket its “Official Prediction Market Exchange.” MLB also signed an integrity protection deal with the CFTC, the first such arrangement between the regulator and a pro sports league. 2/7

⚡ Polymarket Gets Real Sports Plumbing The deal gives Polymarket access to MLB marks and logos for prediction products, plus official league data from Sportradar. That pushes prediction markets closer to the center of mainstream sports. 3/7

⚡ Kalshi Answered With a Stunt of Its Own The platform launched a $1 billion perfect bracket challenge for March Madness, plus a guaranteed $1 million prize for the top-scoring entry if nobody submits a flawless bracket. 4/7

⚡ Legal Pressure Hit a New High On March 17, Arizona filed 20 criminal misdemeanor charges against Kalshi, accusing it of operating an illegal gambling business. That marks a major escalation beyond the cease-and-desist fights seen so far. 5/7

⚡ The Buildout Continues Anyway Polymarket acquired DeFi startup Brahma on March 18 to strengthen on-chain liquidity, especially in smaller markets. It also unveiled plans for a D.C. sports bar called “The Situation Room.” 6/7