Colorado had the misfortune of launching legal sports betting at the height of the COVID-19 pandemic, when all major professional sports leagues were shut down. Some people, like Garnett, were willing to place bets that would not be decided for months (the Broncos finished 5–11). Others wanted action right away, wherever on the globe they could find it. Among the most popular sports in those early months were South Korean baseball, Costa Rican soccer, and Russian ping-pong. In May and June, Coloradans bet $15.7 million—roughly a quarter of the total bet on all sports—on table tennis, which was exciting, fast paced, and played at all hours of the day. Even if many bettors were simply picking players at random, they were not going to miss the chance for convenient, legal betting.
From Losing Big: America's Reckless Bet on Sports Gambling