Online e-sports refers to the competitive activities in which players participate in electronic games through a network connection. E-sports can include individual and team events, and common game genres include first-person shooters (such as Call of Duty and Counter-Strike), multiplayer online tactical games (such as League of Legends and DOTA 2), and sports Games (such as FIFA and NBA 2K).

Competitive formats of online esports include individual and team competitions, which attract huge fans and spectators around the world. Some of the well-known online esports events include the League of Legends World Championship, The International DOTA 2 Invitational, CS:GO Masters, and more.

In addition to the competition itself, e-sports also involves e-sports programs, event analysis, game live broadcast and community activities. These events can be broadcast live online through the webcast platform, and have a large number of fans and audience support.

With the development and growth of the e-sports industry, more and more companies and organizations have begun to invest in the field of e-sports, including game developers, sponsors, media agencies and e-sports clubs, etc.

In conclusion, online e-sports is a fast-growing industry that has become a widely watched entertainment activity worldwide with a huge fan and audience base.