Racing preview for this weekend has a unique and major event this weekend as well as desert motorcycle racing action. The Nitto Tire Ultra 4 Nationals moves into Wild West Motorsports Park for a Saturday race. If you’ve never seen this event it is one of the wildest races on the planet. An Ultra 4 is a cross between an all out desert racer and a rock crawler. And they do race across two fields of rocks, and those rocks, well they’re more like boulders. Saturday is when the main action happened and things really start going around 10 a.m.