The final stop of the UCI BMX Supercross World Cup series presented by Swatch got underway in Chula Vista, Calif. on Friday with two Americans, Connor Fields and Brooke Crain, coming away with the menandrsquo;s and womenandrsquo;s victories in the time trial superfinal. Watch Saturdayand#39;s main event live from Chula Vista on Universal Sports from 7 andndash; 9 p.m. ET.