iRacing.com Motorsport Simulations, headquartered in Chelmsford, MA, was founded in September of 2004 by David Kaemmer, co-founder of Papyrus Racing Games, and John Henry, principal owner of the Boston Red Sox. iRacing.com’s mission is to create the world’s leading and most authentic PC-based racing simulation and grow a new branch of motorsport through real-time, online competition – otherwise known as simracing.