There were 19 F1 races in 2013.
In total there was 219. Here is number of races per season from 2003-2014. 2003 season had 16 races 2004 season had 18 races 2005 season had 19 races 2006 season had 18 races 2007 season had 17 races 2008 season had 18 races 2009 season had 17 races 2010 season had 19 races 2011 season had 19 races 2012 season had 20 races 2013 season had 19 races 2014 season had 19 races
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.
From start of the 2003 season to the end of 2014 season. There would be 219 races. Vast majoirty of races were 17-19 races in a season. However, this isn't including 2012 where there were 20 races in a single season.
2 Catalyuna and Valencia
Zero. That season ended in 2014.
Yuji Ide started four races in his Formula 1 career. They were all during the 2006 season.
As of the completion of the Formula 1 2012 season, Sebastian Vettel has won 5 Formula 1 GPs during the season.
There are multiple races held every year. The number has been steadily increasing over the past few years. There were 19 races in the 2010 season and 20 races in the 2011 season. The 2009 season had only 17 races. The number of tracks/races keeps changing every year.
As of the completion of the Formula 1 2012 season, Sebastian Vettel has won 27 Formula 1 GPs.
Sebastian Loeb has won 6 World Championships
Through the 2013 season, Carl Edwards has started 337 Nascar Cup Series races in his career.
Through the 2013 season, Matt Kenseth won 31 Nascar Cup Series races and 28 Nationwide Series races.