The run that starts off in downtown Danville each year, raises money for the hospital dedicated to treating children whose families cannot afford medical care.
Joanne Spencer, who works for the hospital's foundation, said more people participated this year than last.
She said that 2,000 people registered in advance and about 200 more registered Sunday morning.
“It was a great turnout,” Spencer said. “They’re a great crowd with wonderful support for Children’s Hospital.”
More than 250 volunteered at the event.
The runs included 5K and 10K races and a fun run for ages 3 to 8.
The 5K race went north, and returned on the Iron Horse Trail, while 10K racers went south, and then north on the Iron Horse Trail.
student Meghan Nesbit, 16, said she has been running in the event since she was 10.
“I think it’s fun to get out and run, it feels good,” she said. “I think it’s a good cause to raise money for and that it’s great for everyone to run for the hospital.”
Former Danville resident Jeff Zeliger, who lives in Walnut Creek and was participating in his second Devil Mountain Run, said he plans to make it an annual event.
“They do a good job organizing it,” he said. “It’s a fun little run.”
It was also the second run for Danville resident Janet Hanna, who runs the Iron Horse Trail regularly and wanted to support the hospital.
“I think it’s great, especially with insurance the way it is,” she said. “I mean, it’d be awful not to be able to afford medical care for your child.”
The amount raised by the run has not been determined, Spencer said.
Danville Mayor Karen Stepper spoke before the event, spoke of her grandchild, who was born premature and needed to be hospitalized. She said: “We are a community that can come together for the smallest ones in our community."