You must have "Full Access" or Limited Access - HQ Tools" permission to edit a game in TeamCenter.
NOTE: You cannot switch a recurring event to a non-recurring one. You must delete the recurring event and then create a new event.
Sign in and go to your team's TeamCenter.
On the left-hand navigation, click on the Schedule tab.
Click on the event or game "name" you want to edit.
Click the pencil icon next to the game or event details.
Make your updates and click Save Changes.