| # | Rider | Age | Bike | Team |
|---|---|---|---|---|
| 2 |  Carl FOGARTY | 33 |  Ducati 916 | Ducati Performance |
| 4 |  Akira YANAGAWA | 26 |  Kawasaki ZX-7RR | Kawasaki Racing Team |
| 5 | Neil HODGSON | 24 | Kawasaki ZX-7RR | Kawasaki Racing Team |
| 6 |  Peter GODDARD | 34 | Suzuki GSX-R750 | Suzuki World Superbike |
| 7 |  Pierfrancesco CHILI | 34 | Ducati 916 | Ducati ADVF |
| 8 | James WHITHAM | 31 | Suzuki GSX-R750 | Suzuki World Superbike |
| 9 | Piergiorgio BONTEMPI | 30 | Kawasaki ZX-7RR | Kawasaki Bertocchi |
| 10 |  Andrew STROUD | 30 | Kawasaki ZX-7RR | Andrew Stroud Racing |
| 11 | Troy CORSER | 26 | Ducati 916 | Ducati ADVF |
| 15 |  Igor JERMAN | 23 | Kawasaki ZX-7RR | Team Bertocchi |
| 19 | Lucio PEDERCINI | 25 | Ducati 916 | Team Pedercini |
| 20 |  Aaron YATES | 24 | Suzuki GSX-R750 | Yoshimura Racing Team |
| 27 |  Frédéric PROTAT | 31 | Ducati 916 | FP Racing |
| 35 |  Gregorio LAVILLA | 24 | Ducati 916 | De Cecco Racing |
| 39 | Alessandro GRAMIGNI | 29 | Ducati 916 | Gattolone Racing Team |
| 41 | Noriyuki HAGA | 23 | Yamaha YZF750 | Yamaha World Superbike Team |
| 44 | Scott RUSSELL | 33 | Yamaha YZF750 | Yamaha World Superbike Team |
| 45 | Colin EDWARDS | 24 | Honda RC45 | Castrol Honda |
| 66 | Mat MLADIN | 26 | Suzuki GSX-R750 | Yoshimura Racing Team |
| 79 | James RANDOLPH | 28 | Honda RC45 | |
| 86 | Ricky ORLANDO | 41 | Kawasaki ZX-7RR | |
| 88 |  Ricardo SUÑE | 30 | Ducati 916 | |
| 92 | Jamie HACKING | 27 | Yamaha YZF750 | Yamaha Racing Team |
| 95 | Anthony GOBERT | 23 | Ducati 916 | Vance & Hines Ducati |
| 97 | Rich OLIVER | 36 | Yamaha YZF750 | Yamaha Racing Team |
| 101 | Ben BOSTROM | 24 | Honda RC45 | Honda Racing Team |
| 110 | Doug CHANDLER | 32 | Kawasaki ZX-7RR | Muzzy Kawasaki Racing |
| 111 | Aaron SLIGHT | 32 | Honda RC45 | Castrol Honda |
1998-07-10 to 1998-07-12
World Superbike United States Round
Laguna Seca (Permanent circuit, 3.6100 km)
Attendance: 64,000 (3-day)
Event permit: IMN 102/9
Timekeepers: Federazione Italiana Cronometristi
Entries: ? / Practised: 27 / Qualified: 26
Sessions
Entry list
Struck out text denotes riders on entry list who did not participate.
Rider notes
#95 Gobert: Banned from competing due to failed drug test.
Sources:
Official results/ Official attendance figures/ 1998-07-12 live TV coverage/ Associated Press 1998-07-18 press release/ Cycle News 1998-07-22 pg3, 6-11/ Slovenska Tiskovna Agencija 1998-07-13 press release/ Article 'Destruction Alley' by Dean Adams (superbikeplanet.com)/ amasuperbike.com/ motorcycle-usa.com/ odn.ne.jp/jaja/ rickyorlando.com/about-ricky-orlando/meet-ricky-orlando/ troycorser.com/ Usenet posts in rec.motorcycles.racing/ Photos by Bob Snyder Drag Photos Photos by Chuck Forquer (Facebook)