Missouri's regulated sports betting market opened at 12:00 a.m. on December 1, 2025. Retail sportsbooks and statewide mobile wagering went live at the same moment rather than in the staggered sequence most states have used, where retail opens months ahead of the apps.
The market exists because of Amendment 2, approved by Missouri voters in November 2024. The gap between the vote and the launch, roughly thirteen months, went into rulemaking and licensing rather than litigation.
What Missouri did not authorize
Amendment 2 covers sports wagering. It does not authorize online casino games. Missouri remains outside the seven-state group with a live state-regulated iCasino market, and any site offering slots or house-banked table games to Missouri residents is not operating under a Missouri licence.
This is the most common confusion after a sports betting launch, and it is worth stating plainly: a state that just legalized sportsbooks has not legalized online casinos, and the two markets are authorized by separate statutes with separate licensing.
Where sweepstakes sit in Missouri
Missouri is an open state for dual-currency sweepstakes products as of our July 2026 review, meaning it has not enacted a ban of the kind now in force in Montana, Connecticut, New York, Indiana and Maine. That is a statement about the absence of a specific prohibition, not an endorsement, and it is exactly the kind of status that has changed at short notice in other states through 2025 and 2026.
How this fits the national picture
Missouri's launch continued the pattern where sports betting expands while online casino does not. Roughly 32 jurisdictions now offer statewide online sports wagering against seven live iCasino markets plus Maine authorized and pre-launch. The gap has widened, not closed, over the past three years.