Often, when working with playoff games in a league or elimination round games in a tournament, you will not know the team names at the time you post the schedule to your site. As a result you will have games where the teams are entered like "1st versus 8th" or "Winner Game 1 versus Winner Game 4".
Once the teams have been determined you can easily update them either via the "Schedule" or the "Game Score" tools by clicking the blue, underlined team names:
NOTE: It is best to update all the known teams BEFORE you enter any NEW scores.