How to withdraw from a Daily Tournament
Withdrawing from an active Daily tournament will automatically resign all ongoing games. If more than 4 moves have been played, this will affect your rating. Even games with no moves will appear as losses in your history.
To withdraw:
Visit the tournament's homepage
Click 'Withdraw' on the right-hand side
How to withdraw from a Live Tournament
Keep in mind that once you withdraw from a tournament, you cannot rejoin, even if it hasn’t started yet. If the round has started, withdrawing will resign any active games.
To withdraw:
Click the 'X' on the tournament tab
Confirm by selecting 'Yes' in the popup
Mobile
Follow these steps to withdraw from a tournament on the Chess.com mobile app:
Tap 'Play' on the main screen
Select 'Tournaments'
Under the 'Joined' list, tap the tournament you wish to withdraw from and tap the 'X'
Click 'Yes' in the pop-up message: