IRVINE, Calif. (August 9, 2017) – Mazda Motorsports today announced open registration for the 2017 Global Mazda MX-5 Cup Challenge featuring a $110,000 prize pool, with $75,000 going to the overall winner. The two-race, total points event will be hosted at Mazda Raceway Laguna Seca on October 12-15. Registration is now open at MazdaMotorsports.com to all racecar drivers around the world, excluding Mazda Motorsports’ factory drivers.