Races in calendar week 18/2011

All motorsport events on the weekend of 6–8 May 2011.

Circuit	Country	Series
Darlington (oval)	USA	Race results available (limited) NASCAR Sprint Cup 2011
Istanbul	Turkey	Race results available (full) FIA Formula 1 World Championship 2011 Race results available (full) GP2 Series 2011 Race results available (full) GP3 Series 2011 Race results available (full) Porsche Supercup 2011
Portimao (Algarve)	Portugal	Race results available (full) FIA GT1 World Championship 2011 Race results available (full) FIA GT3 European Championship 2011
Spa-Francorchamps	Belgium	Race results available (full) German Formula-3-Cup 2011 Race results available (full) Intercontinental LeMans Cup 2011 Race results available (full) LeMans Series (LMS) 2011
Valencia (Cheste)	Spain	Race results available (full) International Superstars Series 2011