Following are the results on the opening day of the AAPT Tennis Championships at Memorial Drive in Adelaide, the South Austrlalia state, on Monday (prefix number denotes seeding):

First round

Jason Stoltenberg, Australia, bt 4-Dominik Hrbaty, Slovakia, 6- 3, 6-1

Alberto Martin, Spain, bt 5-Vincent Spadea, United States, 6-2, 6-2

3-Magnus Norman, Sweden, bt Scott Draper, Australia, 6-4, 6-4

Roger Federer, Switzerland, bt Jens Knippschild, Germany, 6-1, 6-4

Slava Dosedel, Czech Republic, bt Ivan Ljubicic, Croatia, 6-4, 6-2

James Sekulov, Australia, bt Gianluca Pozzi, Italy, 6-4, 2-6, 6- 2