Organizers of a prestigious pro bicycle race from San Jose to the Mount Diablo summit on May 13 are looking for hundreds of volunteers to help with the third stage of the Amgen Tour of California.

People willing to work as course marshals, hospitality workers, media helpers and other jobs are invited to apply online at www.amgentourofcalifornia.com/footer/volunteer.

Mt. Diablo State Park and the Mt. Diablo Intepretative Association are helping coordinate volunteers for the mountain section.

The 108.5-mile leg starts at 10:45 a.m. May 13 at Lake Cunningham Regional Park in eastern San Jose and finishes at the Mount Diablo summit. It is the only Bay Area part of the race from March 11 to 18.

For information about the race or to purchase VIP tickets to watch the finish from a summit viewing area, visit amgentourofcalifornia.com.

Contact Denis Cuff at 925-943-8267 or dcuff@bayareanewsgroup.com. Follow him at Twitter.com/deniscuff