How do Chess.com Online Tournaments work?

Chess.com uses the popular Round-Robin format for chess tournaments. In round-robin tournaments each player plays every other player in two games (once as white, once as black). An example of a small round-robin is shown below.

 

  1 2 3 4 Points   Tie Break 
1. Player 1 (1200) X ½ - 1 1 -½ 1 -1 5 11.5
2. Player 2 (1200) 0 -½ X 0 - 1 1 - ½ 3 7.5
3. Player 3 (1200) ½ - 0 0 - 1 X 0 -½ 2 6.5
4. Player 4 (1200) 0 - 0 ½ - 0 ½ - 1 X 2 4.5


Round-robin is very effective because each player plays every other player and then the winner is determined by the score. However, if there are a lot of players, then round-robin tournaments can take a very long time. In that case a knock-out format can be introduced to make the tournament go faster.

keywords: tournament organization model swiss round robin pairings style

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