Formula One races will be held at different circuits depending on the country and contract held.
There were 19 F1 races in 2013.
Heinz-Harald Frentzen entered 160 Formula One races, but only actually started 156. He won the 1997 San Marino Grand Prix and both the French and Italian Grands Prix in 1999.
Micheal Schumacher has won the most Formula One races with 91 victories and 7 chapionship titles. He is the best driver of all-time.
Nigel Mainsell won 31 races, and was champion in 1992
In 2010 and in 2011 there was 19 races in the Formula One World Championship. Next year there will be 20 races which is the maximum amount that they want.
Sir Jackie Stewart
Counting from the start of the first Formula One season in 1950, and including the 12 races that have been run in the 2013 season as of the time of this answer, there have been a total of 890 Formula One races.
Nigel Mansell has won the most Formula One races by a British Driver with 31 wins (fourth-best of all-time) from 1980 to 1993.He won one Formula One World Championship in 1992.
Sebastian Vettel he was 19 when he won the title
All Formula One Races have practice on Thursday, Friday and Saturday.
Rubens Barrichello is a retired formula one driver from Brazil. He was active in formula one between 1993 and 2011. He has had one of the longest formula one careers in history. He has started a record 322 races. His first ever race was the 1993 South African Grand Prix. He has won a total of 11 races and finished on the podium 68 times in his illustrious career.