Races in calendar week 13/2003

All motorsport events on the weekend of 28–30 Mar 2003.

Circuit	Country	Series
Jarama	Spain	Race results available (full) Formula Nissan V6 World Series 2003
Misano	Italy	Race results available (full) Italian Formula 3 Championship 2003
Okayama	Japan	Race results available (full) All-Japan GT Championship 2003