In NASCAR, after four weeks together, the Xfinity and Monster Energy Cup Series will split for races this weekend that will be heard live on WEBO. The Xfinity Series will race under the lights of Iowa Speedway Saturday night. Motor Racing Network coverage of the American Ethanol 250 will begin at 8pm. Sunday, the Cup Series will go road racing in the hills of California’s Napa Valley. Tony Stewart won last year’s race by a nose over teammate Denny Hamlin. Performance Racing Network coverage of the Toyota/Save Mart 350 will begin at 2pm Sunday on WEBO.
