Create Your Profile Below If you already have a profile, LOG IN HERE. Gender * Male Female Date of Birth * ADULT WAIVER JUNIOR WAIVERIf you are under the age of 18, you will need to have a parent or legal guardian sign the Xtreme waiver. Please note you must be 6 years old or older to race at Xtreme. About UsXtreme Racing & Entertainment is Wichita’s newest, premier indoor go-kart racing experience, featuring a unique “grip n’ rip” asphalt track. Plus, with pool tables, air hockey, foosball and arcade games, there’s something for everybody. We’re focused on being your one-stop venue for all things fun.