Copyright 2004, Roadracing World Publishing, Inc.

Yamaha’s Jason DiSalvo topped the first AMA Supersport practice, held Friday afternoon at Mazda Raceway Laguna Seca, but not by much.

DiSalvo’s 1:29.124 put him just in front of Kawasaki’s Tommy Hayden (1:29.137) and Yamaha teammate Aaron Gobert (1:29.184), with Hayden’s teammate Roger Lee Hayden (1:29.499) not far behind.

Fifth-fastest in the session was Damon Buckmaster (1:30.360), who found riding his YZF-R6 easier on his still-healing fractured scaphoid bone than riding his YZF-R1 Superstock bike.

The fourth Yamaha rider, Jamie Hacking, who is nursing a freshly-plated 11-day-old broken collarbone, did not ride in the Supersport practice session. Hacking told Roadracingworld.com earlier in the week that Superstock would be his focus, but Yamaha Team Manager Tom Halverson said Hacking may still ride in Supersport.

“Supersport qualifying isn’t even until Sunday morning, after the Superstock race is over. So there’s no sense in risking it right now,” said Halverson.

Provisional Friday Afternoon AMA Supersport Practice Times:

1. Jason DiSalvo, Yamaha, 1:29.124
2. Tommy Hayden, Kawasaki, 1:29.137
3. Aaron Gobert, Yamaha, 1:29.184
4. Roger Lee Hayden, Kawasaki, 1:29.499
5. Damon Buckmaster, Yamaha, 1:30.360
6. Ben Spies, Suzuki, 1:30.434
7. Michael Barnes, Yamaha, 1:30.727
8. Steve Rapp, Suzuki, 1:31.483
9. Tony Meiring, Kawasaki, 1:31.626
10. Ben Attard, Suzuki, 1:32.112
11. Jeff Tigert, Honda, 1:32.487
12. Chris Peris, Suzuki, 1:32.564
13. Chris Siglin, Yamaha, 1:32.933
14. Chris Ulrich, Suzuki, 1:32.947
15. Jason Perez, Yamaha, 1:32.995
16. Andy Carman, Yamaha, 1:33.061
17. Heath Small, Yamaha, 1:33.427
18. Darren Luck, Suzuki, 1:33.621
19. Alan Schmidt, Yamaha, 1:33.696
20. Nicky Moore, Suzuki, 1:34.471