When the 2013 Williams Route 66 Marathon arrives this weekend, be prepared to either join the race or stand back. As is always the case, this year’s marathon weekend will send thousands of runners out into the streets of Tulsa. Last year’s marathon and half-marathon races each sold out with more than 6,700 total participants signed up for those events. That’s not counting the thousands who took part in the relay, 5k and fun run-walk events. The weekend of Nov. 23-24 is all about running, health and promoting fitness, and it continues gaining attention from the running world beyond Tulsa’s city limits. Expect another sell-out event bringing in 10,000-plus participants in addition to their supporters, vendors for the health expo and onlookers ready to celebrate at the finish line. Register now at www.route66marathon.com to join and see a schedule of events.