Editor's note (March 2026): While we wait for Polymarket to go live, we recommend checking out the Kalshi promo code offer. Claim the Polymarket promo code from the ‘world’s largest’ prediction site.

Not all sportsbook promos are created equal. Some reward you just for signing up. Others require a winning bet, a losing bet, or a very specific set of circumstances. We cut through the fine print so ...