Calling The Great American Race a truly iconic event with rich history J.J. Watt is honored to be Grand Marshal at Daytona. J. J seemed truly honored to be the first NFL Player to be this year's Grand Marshal Sunday. The Defensive End says he is looking forward to taking in the action up close and personal this year. He also will have the honor of giving the command that we all know and love. Start Your Engines of course full coverage is Sunday afternoon on Shenandoah Country Q102 and that iHeartradio app as well with the flag dropping at 2:30. For all things NASCAR click here.