Del Oro CA sophomore Riley Chamberlain won the Division 3 girls 3-mile race in 19:33.7 at the CIF Sac-Joaquin Subsection meet at Calaveras County Fairgrounds in Angels Camp. Chamberlain, who posted the fastest overall time at last year's meet by clocking 17:54.2, helped Del Oro place six athletes in the top 20 to prevail with 43 points and advance to the Nov. 16 section final at the Willow Hills Course in Folsom.