Steve Madgwick for OLBGAaron M. Sprecher // Getty Images7 types of sports bettors you’ll see every NFL SundayA packed sportsbook on an NFL Sunday; prime time for casual sports bettors to place their wagers. Key Stats at a GlanceNFL reigns supreme: The NFL is the top choice for bettors; 85% of U.S. sports bettors say they bet on NFL games, making football by far the most popular betting sport. Now, let’s meet the lineup of sports bettor types you’ll encounter — maybe you’ll recognize yourself or your friends in one (or a mix of several). After all, the NFL is the most popular league to bet on, with 85% of U.S. bettors wagering on NFL games. The High Roller (Big Bets, Big Swagger)At the opposite end of the spectrum from the casual dabblers are the High Rollers.