The 1991 Italian motorcycle Grand Prix was the fifth race of the 1991 Grand Prix motorcycle racing season. It took place on the weekend of 17–19 May 1991 at the Circuito Internazionale Santa Monica.
500 cc classification Pos. Rider Team Manufacturer Laps Time Grid Points 1 Michael Doohan Rothmans Honda Team Honda 36 46:27.037 5 20 2 John Kocinski Marlboro Team Roberts Yamaha 36 +8.677 2 17 3 Eddie Lawson Cagiva Corse Cagiva 36 +14.319 4 15 4 Alex Barros Cagiva Corse Cagiva 36 +23.151 7 13 5 Jean-Philippe Ruggia Sonauto Yamaha Mobil 1 Yamaha 36 +23.561 8 11 6 Doug Chandler Roberts B Team Yamaha 36 +28.135 6 10 7 Kevin Schwantz Lucky Strike Suzuki Suzuki 36 +28.480 3 9 8 Juan Garriga Ducados Yamaha Yamaha 36 +48.073 10 8 9 Wayne Rainey Marlboro Team Roberts Yamaha 36 +1:11.518 1 7 10 Eddie Laycock Millar Racing Yamaha 35 +1 lap 12 6 11 Marco Papa Team Marco Papa Honda 35 +1 lap 14 5 12 Cees Doorakkers HEK-Baumachines Honda 34 +2 laps 15 4 13 Romolo Balbi Honda 34 +2 laps 13 3 14 Simon Buckmaster Padgett's Racing Team Suzuki 33 +3 laps 2 15 Michael Rudroff Rallye Sport Honda 33 +3 laps 1 Ret Didier de Radiguès Lucky Strike Suzuki Suzuki 29 Retired 9 Ret Adrien Morillas Sonauto Yamaha Mobil 1 Yamaha 29 Retired 11 Ret Hans Becker Team Romero Racing Yamaha 25 Retired Ret Nicolas Schmassman Schmassman Technotron Honda 9 Retired DNQ Helmut Schutz Rallye Sport Honda Did not qualify DNQ Andreas Leuthe Librenti Corse Honda Did not qualify DNQ Larry Vacondio Honda Did not qualify
250 cc classification Pos Rider Manufacturer Laps Time Grid Points 1 Luca Cadalora Honda 30 39:29.951 2 20 2 Helmut Bradl Honda 30 +0.009 1 17 3 Pierfrancesco Chili Aprilia 30 +8.179 3 15 4 Loris Reggiani Aprilia 30 +8.186 5 13 5 Wilco Zeelenberg Honda 30 +14.795 7 11 6 Carlos Cardús Honda 30 +14.983 4 10 7 Masahiro Shimizu Honda 30 +33.909 8 9 8 Jochen Schmid Honda 30 +52.658 11 8 9 Andreas Preining Aprilia 30 +53.825 14 7 10 Paolo Casoli Yamaha 30 +1:03.005 13 6 11 Jean-Pierre Jeandat Honda 30 +1:04.911 5 12 Erkka Korpiaho Aprilia 30 +1:09.379 4 13 Renzo Colleoni Aprilia 30 +1:09.886 3 14 Carlos Lavado Yamaha 30 +1:17.145 12 2 15 Stefan Prein Honda 29 +1 lap 1 16 Harald Eckl Aprilia 29 +1 lap 17 Jaime Mariano Aprilia 29 +1 lap 18 Urs Jucker Yamaha 29 +1 lap 19 Martin Wimmer Suzuki 29 +1 lap 10 20 Renato Colleoni Aprilia 29 +1 lap 21 Patrick van der Goorbergh Yamaha 29 +1 lap 22 Bernd Kassner Honda 29 +1 lap 23 Wayne Doran Aprilia 29 +1 lap 24 Jean Foray Yamaha 29 +1 lap Ret Corrado Catalano Honda 26 Retired Ret Stefano Pennese Aprilia 22 Retired Ret Frédéric Protat Aprilia 19 Retired Ret Doriano Romboni Honda 18 Retired 6 Ret Fausto Ricci Yamaha 18 Retired Ret Àlex Crivillé JJ Cobas 15 Retired 9 Ret Bernard Hänggeli Aprilia 15 Retired 15 Ret Alberto Puig Yamaha 13 Retired Ret Marcellino Lucchi Aprilia 13 Retired Ret Ian Newton Yamaha 8 Retired Ret Leon van der Heyden Honda 1 Retired
125 cc classification Pos Rider Manufacturer Laps Time Grid Points 1 Fausto Gresini Honda 26 36:29.927 1 20 2 Loris Capirossi Honda 26 +18.493 2 17 3 Alessandro Gramigni Aprilia 26 +23.101 7 15 4 Ezio Gianola Derbi 26 +29.088 4 13 5 Hans Spaan Honda 26 +33.230 10 11 6 Nobuyuki Wakai Honda 26 +33.629 13 10 7 Heinz Lüthi Honda 26 +34.115 3 9 8 Gabriele Debbia Aprilia 26 +34.237 8 8 9 Ralf Waldmann Honda 26 +34.460 11 7 10 Dirk Raudies Honda 26 +35.230 6 11 Ian McConnachie Honda 26 +42.905 5 12 Adolf Stadler JJ Cobas 26 +47.525 15 4 13 Hisashi Unemoto Honda 26 +54.431 3 14 Steve Patrickson Honda 26 +1:00.339 2 15 Johnny Wickström Honda 26 +1:00.539 1 16 Koji Takada Honda 26 +1:06.139 17 Julián Miralles JJ Cobas 26 +1:06.935 18 Serafino Foti Honda 26 +1:07.493 19 Manuel Hernández Honda 26 +1:08.123 20 Arie Molenaar Honda 26 +1:08.427 21 Alain Bronec Honda 26 +1:15.924 22 Thierry Feuz Honda 26 +1:19.698 23 Francisco Debon JJ Cobas 26 +1:19.849 24 Maurizio Vitali Gazzaniga 25 +1 lap 12 25 Luis Alvaro Derbi 25 +1 lap Ret Kinya Wada Honda 25 Retired Ret Bruno Casanova Honda 18 Retired 6 Ret Peter Öttl Rotax 17 Retired Ret Herri Torrontegui JJ Cobas 15 Retired 14 Ret Jorge Martínez JJ Cobas 10 Retired 9 Ret Noboru Ueda Honda 8 Retired 5 Ret Kazuto Sakata Honda 5 Retired Ret Manuel Herreros JJ Cobas 4 Retired Ret Alfred Waibel Honda 4 Retired Ret Gimmi Bosio Honda 0 Retired Ret Emilio Cuppini Gazzaniga 0 Retired DNQ Jos van Dongen Honda DNQ Alan Patterson Honda DNQ Stefan Kurfiss Honda DNQ Stefan Bragger Honda DNQ Hans Koopman Honda DNQ Robin Appleyard Honda DNQ Peter Galvin Honda DNQ Wolfgang Fritz Honda DNQ René Dünki Honda DNQ Hubert Abold Honda DNQ Janez Pintar Honda DNQ Taru Rinne Honda
Sidecar classification Pos Rider Passenger Manufacturer Laps Time/Retired Grid Points 1 Steve Webster Gavin Simmons Krauser 26 35:08.085 2 20 2 Egbert Streuer Peter Essaff LCR-Yamaha 26 +14.440 5 17 3 Paul Güdel Charly Güdel LCR-Krauser 26 +26.431 13 15 4 Darren Dixon Sean Dixon LCR-Krauser 26 +30.300 10 13 5 Yoshisada Kumagaya Bryan Houghton Krauser 26 +45.188 9 11 6 Barry Brindley Grahame Rose LCR-Yamaha 26 +50.688 14 10 7 Masato Kumano Eckhart Rösinger LCR-Yamaha 26 +50.943 8 9 8 Ralph Bohnhorst Bruno Hiller Bohnhorst 26 +57.003 7 8 9 Alfred Zurbrügg Martin Zurbrügg LCR-Yamaha 26 +1:08.810 6 7 10 Theo van Kempen Jan Kuyt LCR-Krauser 25 +1 lap 6 11 René Progin Gary Irlam LCR 25 +1 lap 5 12 Tony Wyssen Geral de Haas LCR 25 +1 lap 4 13 Tony Baker Simon Prior LCR-Krauser 25 +1 lap 3 14 Markus Bösiger Peter Markwalder ADM 25 +1 lap 2 15 Klaus Klaffenböck Christian Parzer LCR 24 +2 laps 11 1 16 Markus Egloff Urs Egloff Yamaha 24 +2 laps 4 Ret Steve Abbott Shaun Smith LCR-Krauser 22 Retired 12 Ret Alain Michel Simon Birchall Krauser 12 Retired 3 Ret Rolf Biland Kurt Waltisperg LCR-ADM 3 Retired 1 Ret Barry Smith David Smith Windle-ADM 2 Retired 15 DNQ Derek Brindley Nick Roche LCR DNQ Kenny Howles C. Mugnari Krauser DNQ Hans Hügli Adolf Hänni LCR DNQ Gary Thomas Michel van Puyvelde Krauser DNQ Reiner Kosta Jurg Egli Yamaha DNQ Frank Voigt Holger Voigt Schuh-Spezial DNQ Werner Kraus Thomas Schröder ADM
References