Thousands of runners hit the streets of San Francisco Sunday morning to raise money for a good cause and help commemorate a special occasion.
Sunday was the 10th-annual Nike Women's Marathon in San Francisco.
Runners got a chance to run in the full 26.2-mile marathon or the half-marathon.
The course took them from Union Square, along the waterfront, through the Presidio, and then to the finish line on the Great Highway.
Since the Nike Women's Marathon inaugural event in San Francisco in 2004, more than 250,000 runners have rallied together to run along San Francisco streets.
The marathon raises money to fight cancer.