Simraceway Performance Karting Center Location Sonoma, CA United States Simraceway Performance Karting Center Location Sonoma, CA United States Activity ROK Sonoma Jul 25 Report: ROK Sonoma Race #5 Presented By Sanzaru Aidan O'Neill takes the win in the last lap in the Junior ROK Shifter class, while Charles Hastings returns to take the top spot for the 80 Masters. ROK Sonoma May 22 Race Report: ROK Sonoma Race #3 Presented By Sanzaru VemmeKart USA Apr 18 VemmeKart USA wins in regional and national level competition this weekend KRA and COTA wins and championships highlight April for VemmeKart USA. ROK Sonoma Apr 17 ROK series leads into Challenge Of The Americas the following weekend Colorado's Maximilion Opalski takes the win in VP Fuels feature race for Molecule Junior ROK. ROK Sonoma Apr 3 ROK Sonoma revving up for the Challenge Of The Americas Junior ROK to be the feature race. ROK Sonoma Apr 2 ROK series hits the track at Simraceway's Performance Karting Center for inaugural race Woods kicks off the season with his first win in the Master ROK Shifter class. ROK Sonoma Feb 22 ROK Cup USA and Sim Performance Driving Center Lock down multi-year agreement Partnership now in place that will see ROK engines on track at the famed facility. Also Nearby Simraceway Performance Karting Center Australian Kart Championship Penrith, NSW Karting Australia Penrith, NSW Sheathers Road Kart Complex Wodonga, VIC Gold Coast Motorsport Training Centre Pimpama, QLD Monarto Karting Complex Monarto South, SA Bortoni Motorsports Monterrey, N.L.