He currently competes in the MotoAmerica Superbike Championship for the Warhorse HSBK Racing Ducati NYC team.

Josh turned professional in 2006 a year after winning a WERA 600 National Championship.

He also led the most laps in the Daytona opener, before finishing second to teammate Ben Bostrom.

Herrin raced with the Monster Energy Graves Motorsports Yamaha team from 2012 to 2013, winning the AMA Superbike Championship in 2013.

In 2013, Herrin announced he would be signing with the Caterham Air Asia team in the 2014 Moto 2 World Championship.