Try your luck on the race course today in one of the largest of Tulsa's 5K runs. Kids are welcome to run this 29th annual race, and runners are encouraged to dress up to participate in the costume contest. All proceeds benefit Special Olympics of Oklahoma. In-person registration is available at <a href="www.runnersworldtulsa.com">RunnersWorld Tulsa</a> through today (Friday), and race day registration is available starting at 7:30am Saturday. The fun run begins at 8:30am; the 5K race gets started at 9:15am. Slainte!