Runners Get Their Kicks On Route 66 at Disneyland Half Marathon Weekend – Actor Sean Astin to lead sold out field of more than 17,000 registered runners along half marathon course through all-new Cars Land at newly reopened Disney California Adventure ANAHEIM, Calif. (Aug. 23, 2012) – The Happiest Race on Earth just got happier as runners in the Disneyland Half Marathon Weekend will race Sept. 1 and ...