Bo Olsen, a senior at Buchanan High, won the boys 800 meters in 1:56.88 and contributed to a victory in the 4x400-meter relay in 3:22.32 at the CIF Central Section North Area Championships at Clovis East High in Clovis, Calif. Olsen also finished second in the 1,600 in 4:15.27, advancing in all three events to the Central Section Championships on June 19 at Veterans Memorial Stadium, the home facility of Buchanan High in Clovis.