Proceeds over the years have funded cutting-edge research for treatments of women's cancers.
The L.A. event and one held in New York have raised $60 million since 1994. There were thousands of cancer survivors who participated in Saturday's event at Exposition Park, and many were also participating in memory of a loved one.
Some of the participants take part every year, and cancer survivor Lucille Hayes wore pink boxing gloves for the event, which she's taken part in 11 years in a row.
"For me it was really scary, but I just believed. I just kept praying and I believed in god that I was going to be healed by it," said Hayes, who was diagnosed with breast cancer in 2000.
There were a number of celebrities on hand, including actress Halle Berry who started off the walk.
The 5K run began at 8:45 a.m., and the walk began at 9 a.m. at Figueroa Street.
Eyewitness News anchors Ellen Leyva and Michelle Tuzee took part in the opening ceremonies, and Eyewitness News reporter Elex Michaelson was the emcee for the post-race celebration at the finish line at Los Angeles Memorial Coliseum.
Also, Eyewitness News team members Leslie Sykes, Garth Kemp and Alysha Del Valle were on hand, cheering on participants at our Two-Mile Water Station.
The Revlon Run/Walk is one of the largest fundraisers in the country for women's cancers and the event is backed by the Entertainment Industry Foundation. ABC7 is a proud sponsor of the event every year.