INDIANAPOLIS — Indy Racing League Vice President of Public Relations John Griffin has submitted his resignation, effective Dec. 18.

"John has been a valued part of our organization and he will be missed," said Terry Angstadt, president of the commercial division of the Indy Racing League. "His creativity and passion for the sport brought publicity for the IZOD IndyCar Series to a whole new level. We wish him the best of luck."

Griffin joined the Indy Racing League as vice president in 2002, overseeing all aspects of the IZOD IndyCar Series and Firestone Indy Lights public and media relations program as well as strategic communication. During his tenure, Griffin developed and implemented public relations strategies for several historic events including the unification of open-wheel racing, Danica Patrick’s first win and the series IZOD entitlement announcement earlier this month.

"I appreciate my time here at the Indy Racing League where I have made many great friends and want to thank Terry (Angstadt) and Brian (Barnhart) for the opportunity," said Griffin. "I really think the time is right for me to entertain a new challenge, particularly something that would allow me more quality time with my kids."

Before joining the Indy Racing League, Griffin worked for NASCAR with his professional career also including stops with World Cup USA 1994 and the Major Indoor Soccer League.

A replacement for Griffin has not been selected.