Races in calendar week 15/2003

All motorsport events on the weekend of 11–13 Apr 2003.

Circuit	Country	Series
Binetto	Italy	Race results available (full) Italian Formula 3 Championship 2003
Campo Grande	Brazil	Race results available (full) South American Formula 3 Championship 2003 Race results available (full) Stock Car Brasil 2003
Estoril	Portugal	Race results available (full) FIA Sportscar Championship 2003
Long Beach	USA	Race results available (full) CART ChampCar World Series 2003 Race results available (full) Formula Toyota Atlantic 2003
Motegi (oval)	Japan	Race results available (full) IRL IndyCar Series 2003