The 2003 Giro d'Italia of cycling, the 86th running of the race, was held from 10 May to 1 June 2003, consisting of 21 stages for a total of 3,472 km, ridden at an average speed of 38.828 km/h. It was won by Gilberto Simoni.
It was Simoni's second win in the Giro. After the race, it was discovered that sixth-placed Raimondas Rumšas had tested positive in this Giro.
This edition of the Giro was the first UCI endorsed race where the wearing of helmets was compulsory.
Read more about 2003 Giro D'Italia: Stages, Jersey Progress