1978 French GP results

500cc 39 laps

Pole: Johnny Cecotto

Pos	No.	Rider	Bike · team	Time/Gap
1+15		Kenny Roberts	Yamaha	56:42.500
2+12		Pat Hennen	Suzuki	+10.500
3+10		Barry Sheene	Suzuki	+29.700
4+8		Christian Estrosi	Suzuki	+37.200
5+6		Wil Hartog	Suzuki	+1:07.300
6+5		Graziano Rossi	Suzuki
7+4		Steve Parrish	Suzuki
8+3		Jean Philippe Orban	Suzuki
9+2		Carlo Perugini	Suzuki
10+1		Kenny Blake	Yamaha
—		Johnny Cecotto	Yamaha	DNF

350cc

Pos	No.	Rider	Bike · team	Time/Gap
1+15		Greg Hansford	Kawasaki
2+12		Kork Ballington	Kawasaki
3+10		Jonnie Ekerold	Yamaha
4+8		Tom Herron	Yamaha
5+6		Victor Soussan	Yamaha
6+5		Patrick Fernandez	Yamaha
7+4		Olivier Chevallier	Yamaha
8+3		Pentti Korhonen	Yamaha
9+2		Raymond Roche	Yamaha
10+1		Michel Rougerie	Yamaha

250cc

This race has no result in the official data. Source: Wikipedia (italiano)

Pos	No.	Rider	Bike · team	Time/Gap
1+15		Greg Hansford
2+12		Kenny Roberts
3+10		Kork Ballington
4+8		Jonnie Ekerold
5+6		Tom Herron
6+5		Raymond Roche
7+4		Chas Mortimer
8+3		Olivier Chevallier
9+2		Victor Soussan
10+1		Guy Bertin
11		Franco Uncini		+1 lap
12		Clive Padgett		+1 lap
13		Hervi Moineau		+1 lap
14		Sadao Asami		+1 lap
15		Leif Gustafsson		+1 lap
16		Jean-Claude Meilland		+1 lap
17		Jacques Cornu		+1 lap
18		Pierre Tocco		+1 lap
19		Carlos Lavado		+2 lap
20		Jodef Hage		+2 lap
21		Patrick Fernandez		+4 lap
22		Eduardo Aleman		+9 lap
23		Philip Bouzanne		+10 lap
24		Jean Francois Baldé		+12 lap
—		Pentti Korhonen		DNF
—		Paolo Pileri		DNF
—		Mario Lega		DNF
—		Anton Mang		DNF
—		John Dodds		DNF
—		D. Boulom		DNF
—		Christian Estrosi		DNF
—		Thierry Laurens		DNF
—		Pier Luigi Conforti		DNF
—		Mike Grant		DNF
—		Walter Villa		DNF
—		Eric Saul		DNF
—		Eero Hyvarinen		DNF
—		Roland Freymond		DNF

125cc

Pole: Thierry Espié

This race has no result in the official data. Source: Wikipedia (italiano)

Pos	No.	Rider	Bike · team	Time/Gap
1+15		Pierpaolo Bianchi
2+12		Eugenio Lazzarini
3+10		Per Edward Carlsson
4+8		Maurizio Massimiani
5+6		Jean Louis Guignabodet
6+5		Thierry Noblesse		+1 lap
7+4		Matti Kinnunen		+1 lap
8+3		Patrick Plisson		+1 lap
9+2		Harald Bartol		+1 lap
10+1		Daniel Meyer		+1 lap
11		Claude Gorry		+1 lap
12		Stefan Dörflinger		+2 lap
13		B. Wilbers		+2 lap
14		Johann Parzer		+2 lap
15		E. Fagerer		+2 lap
16		Y. Dupont		+3 lap
17		Jacques Hutteau		+3 lap
18		Pier Luigi Conforti		+5 lap
19		Bert Schneider		+5 lap
20		Karl Fuchs		+10 lap
—		Hans Müller		DNF
—		F. Granon		DNF
—		Michael Schmid		DNF
—		B. Johansson		DNF
—		Thierry Espié		DNF
—		Werner Schmied		DNF
—		Angel Nieto		DNF
—		Ivan Palazzese		DNF
—		Clive Horton		DNF
—		Alain Pellet		DNF
—		Marc-Anton Constantin		DNF
—		Claudio Lusuardi		DNF
—		Enrico Cereda		DNF
—		Ricardo Tormo		DNF
—		Laurent Gomis		DNF