The Race Screen is the main screen used for starting and running a race. When a race is running this is the screen that shows you the current rank and information about each driver along with the timer for the race. There is also a count down light graphic towards the top right of the screen that changes during the count down before the race.
To start a race you can click the Start Race button on this screen. When the Start Race button is clicked all racers in slots will be removed and a count down will occur as defined by the Count Down Time setting on the General Config Screen. Racers will be added automatically to the race if detected after the count down.