- Robichon and Moorespeed Looking for More Victories in IMSA Porsche GT3 Cup Challenge USA by Yokohama Doubleheader Race Weekend at Sonoma   SONOMA, California (September 14, 2018) – Continuing their mission of driver development and maximizing race wins in the IMSA Porsche GT3 Cup Challenge USA by Yokohama, Zach Robichon and Moorespeed will be looking for another victorious weekend in the No. 19 CAG/Moorespeed Porsche GT3 Cup in a pair of 45-minute races this Saturday and Sunday at Sonoma Raceway.   Rounds 13 and 14 on the 2018 schedule, the Sonoma races are the penultimate weekend of the IMSA Porsche GT3 Cup Challenge USA season ahead of next month’s season finale at Road Atlanta at the Motul Petit Le Mans.   Moorespeed and Robichon have teamed up for the final four IMSA Porsche GT3 Cup USA doubleheader race weekends of the year, and it has been a perfect pairing halfway through the schedule.   Last month, Robichon won both races...

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