No. 16 seed Jenson Brooksby of Carmichael in the Sacramento area surprised No. 3 Mason Beiler of Palm Harbor, Fla., 6-2, 6-2 on Friday to reach the boys 18 quarterfinals in the USTA National Winter Championships in Scottsdale, Ariz.
Brooksby, 16, will face No. 8 Matthew Lord of Bloomfield, Conn., today. Lord dismissed No. 12 Duo of Portage, Mich., 6-2, 6-3.
Brooksby was the runner-up in the national hard court and clay court 16s last summer. He won the national hard court 12s in 2013.
Also reaching the National Winter quarterfinals were No. 7 Sara Choy of Palo Alto in the girls 18s and unseeded Marcus McDaniel of Vacaville in the boys 16s. Choy won the girls 16 title last year.
Advancing to the semifinals in Tucson, Ariz., were No. 2 Aryan Chaudhary of Santa Clara in the boys 14s and No. 1 Vivan Ovrootsky of San Jose in the girls 12s.