The most popular e-sport is League of Legends, as it is the esport that gains the most viewership and engagement from fans. You can find esports markets in a few US states.
It’s weekly leagues in North America and Europe, the League of Legends Championship Series (LCS) and the League of Legends European Championships (LEC), boast 120,000 and 95,000 concurrent viewers, respectively.
Other esports games don’t have elite weekly leagues, with the exception of Overwatch, whose developers, Blizzard introduced their own ambitious weekly league shortly after the game’s launch. The Overwatch League boasts viewership numbers that rival even League of Legends, often getting over 150,000 concurrent viewers on their weekly matches.
A big reason for this is that the Overwatch League is a global league, having teams and players representing North America, Europe, China, and Korea, so it appeals to more than one ‘local’ viewer base.
Defence of the Ancients 2 (Dota 2) and Counter-Strike: Global Offensive (CS:GO) don’t have elite weekly leagues as their scenes are open circuit with a lot of tournaments, but their “majors” pull in huge numbers, but they aren’t quite as high as what League of Legends international events pulls in.