| # | Rider | Age | Bike | Team |
|---|---|---|---|---|
| 1 |  Fred MERKEL | 28 |  Honda RC30 | Team Rumi/RCM |
| 2 |  Stéphane MERTENS | 31 |  Honda RC30 | Total/Bel-Ray/Stéphane Mertens Racing |
| 3 |  Raymond ROCHE | 33 | Ducati 851 | Squadra Corse Ducati Lucchinelli |
| 4 |  Fabrizio PIROVANO | 30 | Yamaha OW01 | Pirovano-STO Racing Team |
| 5 |  Anders ANDERSSON | 32 | Yamaha OW01 | Team Yamaha Sweden |
| 6 | Giancarlo FALAPPA | 27 | Ducati 851 | Squadra Corse Ducati Lucchinelli |
| 7 |  Terry RYMER | 23 |  Yamaha OW01 | Team Loctite Yamaha |
| 8 | Baldassarre MONTI | 29 | Honda RC30 | Team Rumi/RCM |
| 9 |  Jari SUHONEN | 23 | Yamaha OW01 | Arwidson Yamaha Team |
| 11 |  Rob PHILLIS | 34 | Kawasaki ZXR750 | Team Shin-Etsu Kawasaki |
| 15 |  Alex VIEIRA | 33 | Honda RC30 | Honda Motul |
| 17 | Davide TARDOZZI | 31 | Ducati 851 | Bike 2000 Racing Team |
| 19 | Rob McELNEA | 30 | Yamaha OW01 | Team Loctite Yamaha |
| 25 |  Peter RUBATTO | 34 | Yamaha OW01 | Hein Gericke Racing |
| 27 | Stefano CARACCHI | 30 | Ducati 851 | |
| 28 | Bruno BONHUIL | 30 |  Honda RC30 | MTD |
| 30 | René DELABY | 33 | Honda RC30 | Team Wanty |
| 32 | Piergiorgio BONTEMPI | 22 | Ducati 851 | |
| 34 | Jamie JAMES | 29 | Ducati 851 | Squadra Corse Ducati Lucchinelli |
| 37 | Michael RUDROFF | 29 | Bimota YB4EI | RS Rallye Sport GmbH |
| 38 | Wolfgang MÖCKEL | ? | Honda RC30 | RH-JF Team Wellbrock & Co. |
| 39 | Jean Yves MOUNIER | 29 | Yamaha OW01 | Masters Team |
| 41 |  Christian MONSCH | ? | Honda RC30 | Grisoni Honda |
| 44 |  Juan LÓPEZ MELLA | 25 | Honda RC30 | Nivea for Men Honda |
| 46 | Vittorio SCATOLA | 31 | Bimota YB4EI | |
| 48 | Jean-Michel MATTIOLI | 30 | Honda RC30 | Honda Motul |
| 49 | Fabio BILIOTTI | 33 | Kawasaki ZXR750 | |
| 50 |  Jeffry DE VRIES | 26 | Yamaha OW01 | Racing Team Henk de Vries |
| 51 | Brian MORRISON | 29 | Honda RC30 | The Drambuie Liqueur Company |
| 52 |  Karl DAUER | 30 | Honda RC30 | |
| 54 | Toni RÖHRER | ? | Honda RC30 | |
| 55 | Huby MEIER | ? | Honda RC30 | Team Nock |
| 56 | Aldeo PRESCIUTTI | 29 | Yamaha OW01 | |
| 57 |  Graham SINGER | 35 | Kawasaki ZXR750 | |
| 58 | Edwin WEIBEL | 34 | Honda RC30 | MSW Team |
| 59 | Adriano NARDUCCI | 34 | Yamaha OW01 | Pirovano-STO Racing Team |
| 60 | Anton RECHBERGER | 32 | Yamaha OW01 | MSC-Rottenegg |
| 61 | Romolo BALBI | 31 | Ducati 851 | |
| 62 | Adrian BOSSHARD | 28 | Honda RC30 | |
| 63 | Richard HUBIN | 36 | Ducati 851 |
1990-10-05 to 1990-10-07
World Superbike Italian Round
Monza (Permanent circuit, 5.8000 km)
Attendance: 30,000
Event permit: IMN 02/11
Timekeepers: Federazione Italiana Cronometristi
Entries: ? / Practised: 38 / Qualified: 36
Sessions
Entry list
Struck out text denotes riders on entry list who did not participate.
Sources:
Official results/ 1990-10-07 RaiTre live TV coverage/ Cycle News 1990-10-24 pg10-11/ France Moto Magazine n.252 pg29/ Journal du Jura 1990-10-08 pg18/ La Liberté 1990-10-08 pg31/ Le Nouvelliste 1990-10-08 pg27/ Moto Revue n2961 pg10-15/ Motosprint 1990-41 pg28-32/ Superbike 1991