| Pushpin Map: | Canada Southern Ontario#Canada |
| Pushpin Label: | Hamilton |
| Venue: | Hamilton, Ontario, Canada |
| Coordinates: | 43.2567°N -79.8692°W |
| Date: | 7 - 12 October 2003 |
| Events: | 10 |
| Previous: | 2002 |
| Next: | 2004 |
The 2003 UCI Road World Championships took place in Hamilton, Ontario, Canada, between October 7 and October 12, 2003. The event consisted of a road race and a time trial for men, women, men under 23, junior men and junior women.
David Millar was handed a two-year ban and stripped of his world time trial title by the British cycling federation for taking the banned performance enhancer EPO.[1] Following this disqualification, the UCI declared Michael Rogers as the winner with the silver medal going to Uwe Peschel and the bronze to Michael Rich.[2]
| Men's Events | ||||||
| Men's road race | Igor Astarloa | 6h30'19" | Alejandro Valverde | + 5" | Peter van Petegem | s.t. |
| Men's time trial | David Millar | 51'17" (Stripped of title) | Michael Rogers | + 1'25" | Uwe Peschel | s.t. |
| Women's Events | ||||||
| Women's road race | Susanne Ljungskog | 3h16'06" | Mirjam Melchers | + 10" | Nicole Cooke | + 12" |
| Women's time trial | Joane Somarriba | 28'23" | Judith Arndt | + 11" | Zulfiya Zabirova | + 26" |
| Men's Under-23 Events | ||||||
| Men's under-23 road race | Sergey Lagutin | 4h14'05" | Johan Van Summeren | s.t. | Thomas Dekker | s.t. |
| Men's under-23 time trial | Marcus Fothen | 38'35" | Niels Scheuneman | + 18" | Alexandr Bespalov | + 21" |
| Men's Junior Events | ||||||
| Men's Junior Road Race | Kai Reus | 3h01'30" | Anders Lund | + 14" | Lukaz Fus | s.t. |
| Men's Junior Time Trial | Mikhail Ignatiev | 27'01" | Dmytro Grabovskyy | + 21" | Viktor Renäng | + 22" |
| Women's Junior Events | ||||||
| Women's Junior Road Race | Loes Markerink | 2h05'39" | Irina Tolmacheva | s.t. | Sabine Fischer | s.t. |
| Women's Junior Time Trial | Bianca Knöpfle | 22'17" | Loes Markerink | + 16" | Iris Slappendel | + 30" |