Step 1:
From the Dashboard select "Team Scheduling".
Step 2:
On the Team Scheduling tab, select the name of the event.
Step 3:
When the calendar appears on the right hand side, click on the day of the game you wish to schedule.
Step 4:
Under the Unassigned Matches, drag and drop the crosshair to the time and field you are assigning it to.
Once complete, your match will appear as it does below.