1983 San Marino Grand Prix

Race details
Race 12 of 12 races in the 1983 Grand Prix motorcycle racing season
Date	4 September 1983
Official name	Grand Prix S. Marino[1][2][3]
Location	Autodromo Dino Ferrari
Course	Permanent racing facility 4.933 km (3.065 mi)
500cc
Pole position Rider Kenny Roberts Time 1:53.590 Fastest lap Rider Kenny Roberts Time 1:53.360 Podium First Kenny Roberts Second Freddie Spencer Third Eddie Lawson
250cc
Pole position Rider No 250cc race was held Fastest lap Rider No 250cc race was held Podium First No 250cc race was held Second No 250cc race was held Third No 250cc race was held
125cc
Pole position Rider Ricardo Tormo Time 2:06.730 Fastest lap Rider Ángel Nieto Time 2:06.030 Podium First Maurizio Vitali Second Hans Müller Third Pierluigi Aldrovandi
50cc
Pole position Rider Stefan Dörflinger Time 2:21.760 Fastest lap Rider Ricardo Tormo Time 2:21.420 Podium First Ricardo Tormo Second Stefan Dörflinger Third Claudio Lusuardi

The 1983 San Marino motorcycle Grand Prix was the final race of the 1983 Grand Prix motorcycle racing season. It took place on 2–4 September 1983 at the Autodromo Dino Ferrari.

Pos.	Rider	Team	Machine	Time/Retired	Points
1	Kenny Roberts	Marlboro Agostini-Yamaha	YZR500	48'16.630	15
2	Freddie Spencer	HRC-Honda	NS500	+1.230	12
3	Eddie Lawson	Marlboro Agostini-Yamaha	YZR500	+7.360	10
4	Marco Lucchinelli	HRC-Honda	NS500	+19.390	8
5	Randy Mamola	HB Sinclair-Suzuki	RG500	+26.080	6
6	Marc Fontan	Sonauto Gauloises-Yamaha	YZR500	+26.610	5
7	Raymond Roche	Moto Club Paul Ricard	NS500	+27.190	4
8	Boet van Dulmen	Shell Nederland-Suzuki	RG500	+1'34.090	3
9	Ron Haslam	HRC-Honda	NS500	+1'38.570	2
10	Anton Mang	HB Gallina-Suzuki	RG500	+1'48.800	1
11	Leandro Becheroni		RG500	+1 lap
12	Wolfgang von Muralt		RG500	+1 lap
13	Philippe Coulon	Marlboro-Suzuki	RG500	+1 lap
14	Chris Guy		RG500	+1 lap
15	Massimo Broccoli		RG500	+1 lap
16	Steve Parrish	Mitsui-Yamaha	YZR500	+1 lap
17	Walter Magliorati	Moto Club Carate	RG500	+1 lap
18	Paolo Ferretti		RG500	+1 lap
19	Franck Gross		RS500	+1 lap
20	Peter Sjöström		RG500	+1 lap
21	Fabio Biliotti	Moto Club Condor	RS500	+1 lap
22	Ernst Gschwender	MO Motul Racing Team	RG500	+1 lap
23	Børge Nielsen		RG500	+2 laps
24	Jon Ekerold	Cagiva	GP500	+2 laps
25	Dimitris Papandreou		YZR500	+2 laps
26	Franz Kaserer		RG500	+2 laps
27	Andreas Hofmann		RG500	+2 laps
Ret	Maurizio Massimiani	HIRT Italia	RS500	Retired
Ret	Didier de Radiguès	Team Johnson Elf	NS500	Retired
Ret	Barry Sheene	Heron-Suzuki	RG500	Retired
Ret	Jack Middelburg	Stichting Racing Team	RS500	Retired
Ret	Keith Huewen	Heron Suzuki	RG500	Retired
Ret	Corrado Tuzii	Beton Bloc Racing	RS500	Retired
Ret	Virginio Ferrari	Cagiva	GP500	Retired
Ret	Attilio Riondato		RG500	Retired
DNS	Loris Reggiani	HB Gallina-Suzuki	RG500	Did not start
DNS	Carlos Lavado	Venemotos-Yamaha	YZR500	Did not start
DNS	Takazumi Katayama	HRC-Honda	NS500	Did not start
Sources:[4][5]