A round-robin bet is a great place to start if you are new to gambling. You can get a free bet with a promo code for many online sportsbooks to bet on college football or the NBA, NFL, NHL, or MLB if those are the sports you know best. You can win on your round-robin bet payout without all your events winning. You can choose a plethora of betting odds and betting lines when picking a round-robin bet. The best part of a round-robin bet is that it can cross multiple sports and many different wagers.