For the 45th year, it was “On your mark, get set, go!” for the Los Altos School District’s Junior Olympics, held Saturday at Los Altos High School. Approximately 1,300 students - about 95 percent of the student body in grades 4-6 - participated in relay races, basketball free throws, jump rope and other events that emphasized “personal best” over competition with others. Among the day’s highlights was the Los Altos Educational Foundation’s presentation of a $1.35 million check to the school district to help cover programs not funded by the state - including physical education. At top, the Loyola School contingent, complete with its lion mascot, march in the opening ceremonies.