Races in calendar week 33/2005

All motorsport events on the weekend of 19–21 Aug 2005.

Circuit	Country	Series
Colorado Springs (Pikes Peak, oval)	USA	Race results available (full) IRL IndyCar Series 2005 Race results available (full) IRL Infiniti Pro Series 2005
Elkhart Lake (Road America)	USA	Race results available (full) Formula Toyota Atlantic 2005 Race results available (full) American LeMans Series 2005
Istanbul	Turkey	Race results available (full) FIA Formula 1 World Championship 2005 Race results available (full) GP2 Series 2005
Phillip Island	Australia	Race results available (full) Formula 4000 by Holden 2005 Race results available (full) Australian Formula 3 Championship Series 2005