Derani to make Pro Mazda switch in 2014 by Valentin Khorounzhiy 20 November 2013 by Valentin Khorounzhiy 20 November 2013 Brazilian racer Pipo Derani will be switching over to the American junior single-seater ladder, as he has been officially unveiled as a Team Pelfrey driver for the 2014 Pro Mazda …