bettors include those who expect to place a bet online, with a bookie, with a casino sportsbook, casually with a friend or participate in a bracket contest
Method of interview
Online survey
Citation formats
March Madness online betting participation in the U.S. 2019-2021
The NCAA Division I Men's Basketball Tournament, also known as March Madness, is an annual knockout tournament between the best college basketball teams in the United States. While some fans enjoy just watching the games, others also choose to bet on them with the potential to earn money or goods. In 2021, it was predicted that 17.8 million U.S. adults would place online bets on March Madness, showing a significant growth when compared to the 2019 estimate of 5.8 million.
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American Gaming Association. (March 14, 2021). Estimated number of adults that intend to place an online bet on March Madness in the United States in 2019 and 2021 (in millions) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 22, 2026, from /statistics/1223103/online-bets-march-madness-us/
American Gaming Association. "Estimated number of adults that intend to place an online bet on March Madness in the United States in 2019 and 2021 (in millions)." Chart. March 14, 2021. ÌÇÐÄÆƽâ°æ. Accessed July 22, 2026. /statistics/1223103/online-bets-march-madness-us/
American Gaming Association. (2021). Estimated number of adults that intend to place an online bet on March Madness in the United States in 2019 and 2021 (in millions). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 22, 2026. /statistics/1223103/online-bets-march-madness-us/
American Gaming Association. "Estimated Number of Adults That Intend to Place An Online Bet on March Madness in The United States in 2019 and 2021 (in Millions)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 14 Mar 2021, /statistics/1223103/online-bets-march-madness-us/
American Gaming Association, Estimated number of adults that intend to place an online bet on March Madness in the United States in 2019 and 2021 (in millions) ÌÇÐÄÆƽâ°æ, /statistics/1223103/online-bets-march-madness-us/ (last visited July 22, 2026)
Estimated number of adults that intend to place an online bet on March Madness in the United States in 2019 and 2021 (in millions) [Graph], American Gaming Association, March 14, 2021. [Online]. Available: /statistics/1223103/online-bets-march-madness-us/
