MELBOURNE, JAN. 18 (MONDAY) -- Australian Anne Minter, cheered by an ecstatic hometown crowd, stunned fourth-seeded Pam Shriver, 6-2, 6-4, today to advance to the quarterfinals of the Australian Open Tennis Championships.

Defending champion Hana Mandlikova defeated ninth-seeded Lori McNeil of Houston, 6-2, 6-4. The second set was on serve until the 10th game when McNeil double-faulted twice to give fifth-seeded Mandlikova match point, then netted a forehand.

No. 8 Claudia Kohde-Kilsch rallied over Radka Zrubakova of Czechoslovakia, 3-6, 6-0, 6-3.

Andrei Chesnokov moved into the men's quarterfinals with a 6-1, 6-4, 6-2 win over Carl-Uwe Steeb. Both were unseeded. Second-seeded Stefan Edberg beat Australian Jason Stoltenberg, 6-3, 6-3, 6-4, and No. 3 Mats Wilander stopped Christian Saceanu, 6-2, 6-4, 6-3.

Minter, 24, ranked 38th in the world, took just 61 minutes to dispatch Shriver, who had won tournaments in Brisbane and Sydney going into the first Grand Slam event of the year. Minter had not previously made it past the third round in nine years of playing in Grand Slam tournaments.

She had breaks in the sixth and eighth games of the first set.

Shriver got an early break in the second set and led, 4-2, before Minter won four straight games.

Minter, a base-liner who has adapted quickly to the new $60 million National Tennis Center's hard courts, mixed up her play. Shriver moved slowly and had no bite to her usually devastating serve.

"I tried to mix it up with lobs and keep her back from the net, hitting passing shots whenever I could," Minter said.

Shriver, 25, from Lutherville, Md., had her right leg bandaged for a groin strain suffered two weeks ago.

"She was very accurate and I wasn't there," Shriver said.