Mark Woodforde of Australia, a surprise finalist in the Los Angeles Open two weeks ago, upset top-seeded Goran Ivanisevic, 6-3, 3-6, 7-5, in the RCA Championships at Indianapolis.
Sixth-seeded Thomas Muster of Austria lost to Greg Rusedski of Canada, 6-4, 3-6, 6-3.
Third-seeded Boris Becker defeated Roger Smith, 6-3, 6-4, before rain suspended play in the Volvo International at New Haven, Conn.
Fourth-seeded Mary Pierce, returning to Montreal for the first time since she was five months old, defeated Rachel McQuillan of Australia, 6-3, 6-3, in the third round of the Matinee International.
No. 3 Kimiko Date of Japan and No. 9 Lori McNeil of the United States also advanced. Date defeated Leila Meshki of Georgia, 7-6 (9-7), 7-5, and McNeil was tied with Alexia Dechaume-Balleret, 2-6, 6-3, when the French player retired because of leg cramps.