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Event: Sports Car Road Races RiversideDate: 22.9.1957
Track: Riverside International Raceway (United States), 5.271 kmsOrganiser: California Sports Car Club

Riverside - Sports 1500 cc
Weather:unknown
Start time:unknown
Grid:unknown
Distance:1 hour
Attendance:27500
Entered:33
Practiced:unknown
Started:21
Finished:14
Classified:14
Classes:StartClass
Class F - Modified76
Class G - Modified106
Class F - Production42
Photo GalleryEntered CarsTechnical DataAppearanceRace Results
Race notes:
Class H and under 1000 cc G Modified cars were originally scheduled to run in this race but in the end another race for all modified cars under 1000 cc was added.
Winners:
Overall:11Porsche 550 RS SpyderRicardo Rodriguez
Class G - Modified:63Lotus Eleven Le Mans ClimaxIgnacio Lozano
Class F - Production:197Alfa Romeo GiuliettaMike Roetnor
Fastest Laps:
Overall:11Porsche 550 RS SpyderRicardo Rodriguez2:17.500
Notes of interest:
Top makes by numbers:Porsche (7), Lotus (7), Alfa Romeo (3)
Top engines by numbers:Porsche (7), Climax (7), Alfa Romeo (3)
Top car types by numbers:Porsche 550 (5), Lotus Eleven (5), Alfa Romeo Giulietta Spider (2), Lotus Mark IX (2)
Driver nationalities:USA (21)
Team nationalities:USA (19)
Most used colours:white (32%), silver (23%), red (21%), blue (9%), tan (5%), green (5%)
Engine positions:front-engined (65%), mid-engined (30%), rear-engined (5%)
Oldest known drivers:Jack McAfee (35), Bob Drake (33), Jim Parkinson (25)
Youngest known drivers:Jim Parkinson (25), Bob Drake (33), Jack McAfee (35)

Official Race Programme:

CoverEntry ListScheduleTrack Map
Programme Cover - Riverside - Sports 1500 cc 1957Entry List - Riverside - Sports 1500 cc 1957Schedule of Events - Riverside - Sports 1500 cc 1957Track Map - Riverside - Sports 1500 cc 1957