To cancel games in bulk, you must have assignor, scheduler, or administrator permissions. If you have the appropriate permission, you can mass cancel events from the Master Game Schedule page. You should first check the selection boxes to the left of the events you wish to cancel. Then use the "Publishing" option in the top toolbar of the Master Game Schedule page and select the Cancel option to cancel all the checked events. Notifications will immediately be sent to all users assigned to canceled events.
Cancellations cannot be undone or un-canceled.