Canadian Grand Prix 1958. (The American Indianapolis 500 formed part of the FIA World Drivers' Championship from 1950 to 1960, but was not run to Formula One regulations and only very rarely entered by regular championship competitors.) During the Australian Grand Prix, reports surfaced that the Canadian Grand Prix could return during the 2009 season in the event that the race circuit in Abu Dhabi was not ready in time. On 26 April 2009, Speed reported Bernie Ecclestone as saying the FIA was negotiating a return of the Canadian Grand Prix for the 2010 season, provided upgrades to the circuit were completed. On
Grand Prix tennis circuit Series until 2009. Now called the ATP World Tour Masters 1000. Grand Prix tournaments below this level were originally called the Super Series, were retained by the ATP and renamed as the Championship Series. All remaining Grand Prix Tour events became part of the World Series. "NB: All rankings were calculated using the Grand Prix points system and do not necessarily reflect the ATP rankings at the same time." 1971 1972 1973 1974 1976 1977 1978 1979 1981 1982 1983 1984 1986 1987 1988 1989 "(last year)" Grand Prix tennis circuit The Grand Prix tennis circuit was a professional tennis