Fans will fill the front and backstretch at the Knoxville Raceway this weekend. Last month, staff made some improvements to ensure those fans are safe while sitting in the stands. General Manager Brian Stickel says that the catch fence has been extended and angled. He says that it’s a proactive measure to ensure track safety for both competitors and spectators. The 53rd Annual Knoxville Nationals begin on Wednesday at Knoxville Raceway.