OKLAHOMA CITY - Runners from across the country and the globe are in Oklahoma City to run the 13 annual Oklahoma City Memorial Marathon Sunday.
More than 3,000 runners will tackle the full marathon, 26.2 miles.
Race officials said 10,000 athletes are running the half marathon, 13.1 miles.
Also, a group from the Boston Marathon are in Oklahoma City to run the Oklahoma City Memorial Marathon.
In total, more than 24,000 people are participating in the marathon.
You can watch the race live right here on News Channel 4.