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  1981 San Marino Grand Prix

Race details
Race 10 of 14 races in the 1981 Grand Prix motorcycle racing season
Date	12 July 1981
Official name	Gran Premio di San Marino
Location	Autodromo Dino Ferrari
Course	Permanent racing facility 4.933 km (3.065 mi)
500cc
Pole position Rider Marco Lucchinelli Time 1:56.300 Fastest lap Rider Barry Sheene Time 1:57.640 Podium First Marco Lucchinelli Second Barry Sheene Third Graeme Crosby
350cc
Pole position Rider No 350cc race was held Fastest lap Rider No 350cc race was held Podium First No 350cc race was held Second No 350cc race was held Third No 350cc race was held
250cc
Pole position Rider Anton Mang Time 2:01.980 Fastest lap Rider Anton Mang Time 2:03.130 Podium First Anton Mang Second Roland Freymond Third Jean-François Baldé
125cc
Pole position Rider Loris Reggiani Time 2:09.300 Fastest lap Rider Ángel Nieto Time 2:09.320 Podium First Loris Reggiani Second Ángel Nieto Third Pier Paolo Bianchi
50cc
Pole position Rider Ricardo Tormo Time 2:23.830 Fastest lap Rider Ricardo Tormo Podium First Ricardo Tormo Second Henk van Kessel Third Theo Timmer

The 1981 San Marino motorcycle Grand Prix was the tenth race of the 1981 Grand Prix motorcycle racing season. It took place on the weekend of 10-12 July 1981 at the Autodromo Dino Ferrari.

Classification

500 cc

Pos.	Rider	Team	Manufacturer	Time/Retired	Points
1	Marco Lucchinelli	Team Nava Suzuki	Suzuki	42'19.980	15
2	Barry Sheene		Yamaha	+3.310	12
3	Graeme Crosby	Ingersoll Herin Team Suzuki	Suzuki	+6.460	10
4	Randy Mamola	Ingersoll Herin Team Suzuki	Suzuki	+44.780	8
5	Kork Ballington	Team Kawasaki	Kawasaki	+1'12.190	6
6	Guido Paci		Yamaha	+1'21.280	5
7	Jack Middelburg	Racing Westland	Suzuki	+1'22.720	4
8	Marc Fontan	Team Sonauto Gauloises	+1'22.850	3
9	Gianni Pelletier		Suzuki	+1'27.380	2
10	Keith Huewen	Heron Suzuki GB	Suzuki	+1'35.230	1
11	Sergio Pellandini		Suzuki	+1'43.040
12	Christian Sarron	Team Sonauto Gauloises	Yamaha	+2'07.320
13	Walter Migliorati		Suzuki	+2'21.660
14	Seppo Rossi		Suzuki	+2'22.680
15	Kimmo Kopra		Suzuki	+1 lap
16	Michel Frutschi	Elf Motor Racing Team	Yamaha	+1 lap
17	Fabio Biliotti		Suzuki	+1 lap
18	Raffaele Pasqual		Yamaha	+1 lap
19	Virginio Ferrari	Cagiva Corse	Cagiva	+1 lap
Ret	Carlo Perugini	Moto Sanvenero	Sanvenero	Retired
Ret	Gianni Rolando		Lombardini	Retired
Ret	Bernard Fau		Yamaha	Retired
Ret	Boet van Dulmen		Yamaha	Retired
Ret	Børge Nielsen		Suzuki	Retired
Ret	Christian Estrosi		Suzuki	Retired
Ret	Franco Uncini		Suzuki	Retired
Ret	Philippe Coulon		Suzuki	Retired
Ret	Sadao Asami		Yamaha	Retired
Ret	Steve Parrish	Team Mitsui Yamaha	Yamaha	Retired
Ret	Willem Zoet	Stimorol Racing	Suzuki	Retired
DNS	Kenny Roberts	Yamaha Motor Company	Yamaha	Did not start
DNQ	Peter Sjöström		Suzuki	Did not qualify
DNQ	Michael Schmid		Suzuki	Did not qualify
DNQ	Alain Rothlisberger		Suzuki	Did not qualify
DNQ	Josef Hage	Dieter Braun Team	Yamaha	Did not qualify
DNQ	Wolfgang von Muralt		Yamaha	Did not qualify
DNQ	Antonio Grecco		Suzuki	Did not qualify
Sources:

References

1. "Grand Prix uitslagen en bijzonderheden 1981". Archive.today. 25 July 2015. Archived from the original on 25 July 2015. Retrieved 11 July 2018.
2. "1981 San Marino MotoGP - Motor Sport Magazine Database". Motorsportmagazine.com. 15 January 2018. Retrieved 19 July 2018.
3. "SAN MARINO GRAND PRIX · 500cc Race Classification 1981". Motogp.com. Archived from the original on 19 July 2018. Retrieved 19 July 2018.

• San Marino and Rimini Riviera motorcycle Grand Prix
• 1981 MotoGP race reports
• 1981 in Italian motorsport
• July 1981 sports events in Europe