What is your mailing address Chris Lieberman November 09, 2016 13:23 Updated Follow Thank you for our email. Our mailing address is:Tulsa Route 66 Marathon, Inc.1611 S. Utica Ave. #409Tulsa, OK 74104 Related articles Where do I park on race day? What food, gatorade and water will be available for the Sunday races? (Marathon, Half Marathon and Marathon Relay) Do you have a list of recommended hotels? Am I allowed assistance from spectators while running the event? How do I register for the Williams Route 66 Marathon? Comments 0 comments Article is closed for comments.