The 57TH Annual 5-HOUR ENERGY Knoxville Nationals presented by Casey’s General Stores begins today.

The ticket office will open at 8 a.m. for anyone still in need of tickets. Some of today’s events include the Weld Racing Go-Kart Spectacular at Slideways featuring Tony Stewart, Kyle Larson and Ricky Stenhouse Jr at 1 p.m. The Great Southern Bank Kid Zone opens at 3 p.m. and features a Casey’s Pizza Party with Brian Brown. Defending Nationals Champion Jason Johnson will hold a media event at 5:30 p.m. and the Arctic Cat Winged Nation presented by Sage Fruit will hit the Fan Zone Stage at 6 p.m. All of today’s events lead up to the BRANDT Professional Agriculture Qualifying Night which can be heard live on 95.3 and 1320 KNIA and kniakrls.com with Race Nights Live at 5 p.m. and racing at 7 p.m.