World Superbike Championship leader Troy Corser led the first practice session Friday morning at Brands Hatch, in England, with a time of 1:29.923 on his powerful Alstare Corona Extra Suzuki GSX-R1000. During the session, Corser swapped the top position with PSG-1 Kawasaki’s Chris Walker and Renegade Koji Honda’s Ben Bostrom. After riding on hand-cut slicks for most of the session, Bostrom mounted slicks toward the end and turned the second-fastest time, a 1:30.776, on his CBR1000RR. Corser’s teammate Yukio Kagayama ended the session third with a 1:31.406, while Walker stayed on cut slicks and slipped to sixth at the end. The practice session started on a damp track, and Corser’s 1:36.8 led until the track started to develop a dry line in some sections and the lap times began to drop. None of the four classes racing at Brands Hatch had a completely dry track Friday morning. Friday Morning World Superbike Practice Times: 1. Troy Corser, Suzuki, 1:29.923 2. Ben Bostrom, Honda, 1:30.776 3. Yukio Kagayama, Suzuki, 1:31.406 4. Lorenzo Alfonsi, Yamaha, 1:31.683 5. Noriyuki Haga, Yamaha, 1:31.788 6. Chris Walker, Kawasaki, 1:32.015 7. Andrew Pitt, Yamaha, 1:32.111 8. Chris Vermeulen, Honda, 1:32.188 9. Steve Martin, Foggy Petronas, 1:32.285 10. Marco Borciani, Ducati, 1:32.419 11. James Toseland, Ducati, 1:32.746 12. Karl Muggeridge, Honda, 1:32.790 13. Regis Laconi, Ducati, 1:33.249 14. Giovanni Bussei, Kawasaki, 1:33.256 15. Jose Luis Cardoso, Yamaha, 1:33.598 16. Pierfrancesco Chili, Honda, 1:33.598 17. Pere Riba, Kawasaki, 1:34.386 18. Norick Abe, Yamaha, 1:34.524 19. Fonsi Nieto, Ducati, 1:34.678 20. Garry McCoy, Foggy Petronas, 1:34.699