This is the always popular night race of the Bay Area Super Prestige cyclocross series. The fields are always large and the crowds pile in to watch the action.  And the action on heckle hill is something to behold. You may even get ahold of a dollar handup!

Watch the single-speed men hit the course at the twilight hour.  Lost of action and mayhem to keep things exciting.

More info: http://www.bayareacx.com