Kono, a 16-year-old Punahou School junior, won on the first extra hole (par-4 first hole) when Clanton missed a five-foot putt to match Kono's birdie.

Kono meets stroke play medalist Mina Harigae of Monterey, Calif., in Friday's quarterfinals. Harigae defeated Sara Hurwitch of Potomac Falls, Va., 5 and 4, in the round of 16.

Two other Hawai'i girls were eliminated in the round of 32 on Thursday. Isabelle Lendl, daughter of tennis great Ivan Lendl, defeated Kimberly Kim, a former Hilo resident, 3 and 2 and Vicky Hurst of Melbourne, Fla., ousted Honolulu's Ayaka Kaneko, 5 and 3.

The annual U.S. Girls Junior is for golfers 17 and under. A record 899 entered the tournament; 156 advanced to this week's championship.

After two rounds of stroke play, the top 64 advanced to match play. The 36-hole final is on Saturday.

U.S. Junior Amateur

Andrew Putnam of University Place, Wash., defeated Honolulu's Tadd Fujikawa, 3 and 2, in the round of 16, Thursday in the U.S. Junior Amateur at Rancho Santa Fe (Calif.) Golf Club.

Fujikawa, a Moanalua High sophomore, was the last Hawai'i player remaining in the tournament.

Fujikawa beat Tyler Ichikawa of Los Altos, Calif., 1-up, Thursday in the round of 32.

Drew Kittleson of Scottsdale, Ariz., defeated Sean Maekawa of Pa'auilo, Hawai'i, 4 and 3, also in the round of 32.

Fujikawa never trailed in the match against Ichikawa that was closely contested throughout. Fujikawa's biggest lead was 2-up.

Stroke-play medalist Arnond Vongvanij of Bradenton, Fla., was ousted by Danny Lee of New Zealand in the round of 32, 1-up.