Legalized sports betting is set to launch on Dec. 1 in Missouri and those looking to get ahead there can scoop bonus value beforehand at Caesars Sportsbook . The Caesars Missouri promo code POSTBETMO will add an extra $150 in bonus bets to your payout if your first bet cashes. If you’re looking to bet on Missouri-based teams, the Chiefs’ first game after launch is against the Texans on Dec. 7. The Blues will face the Ducks at home on the day of launch. Pre-register to use Caesars bonus code