Races in calendar week 27/2003

All motorsport events on the weekend of 4–6 Jul 2003.

Circuit	Country	Series
Cleveland	USA	Race results available (full) CART ChampCar World Series 2003 Race results available (full) Formula Toyota Atlantic 2003 Race results available (full) Barber Dodge Pro Series 2003
Daytona	USA	Race results available (full) Grand-Am Sports Car Series 2003
Estoril	Portugal	Race results available (full) Spanish Formula 3 Championship 2003
Kansas City (oval)	USA	Race results available (full) IRL IndyCar Series 2003 Race results available (full) IRL Infiniti Pro Series 2003
Lausitz	Germany	Race results available (full) german V8 Star 2003
Magny-Cours	France	Race results available (full) FIA Formula 1 World Championship 2003 Race results available (full) FIA Formula 3000 Int. Championship 2003 Race results available (full) Porsche Supercup 2003
Phillip Island	Australia	Race results available (full) Formula Holden 2003
Suzuka	Japan	Race results available (full) Formula Nippon 2003 Race results available (full) All-Japan Formula 3 Championship 2003