March 27, 2003 – Italy's Dario Frigo (Fassa Bortolo) took a tough stage that left most of the peloton in splinters, and created a major change in the G.C. With the win, Frigo takes the leader's jersey by just nine seconds over JosÈ Jufre ( Colchon Relax-Fuenlabrada). US Postal's Lance Armstrong finished in the top-25, a little over a minute behind, after some fine support from his team, which includes Canada's Michael Barry. Barry rode in with a gruppetto almost tweny minutes behind, after a long day of supporting Armstrong.

Stage 4

1. Dario Frigo (Ita) Fassa Bortolo 4.08.02 (34.83
km/h)
2. JosÈ Jufre (Spa) Colchon Relax-Fuenlabrada 0.09
3. David Latasa (Spa) Kelme-Costa Blanca 0.13
4. Leonardo Piepoli (Ita) iBanesto.com
5. Iban Mayo (Spa) Euskaltel-Euskadi 0.23
6. Santiago Perez (Spa) Phonak Hearing Systems 0.25
7. Michael Rasmussen (Den) Rabobank
8. Joaquin Rodriguez (Spa) O.N.C.E.-Eroski 0.27
9. JosÈ Azevedo (Por) O.N.C.E.-Eroski 0.31
10. Marcos Serrano (Spa) O.N.C.E.-Eroski

—
92. Michael Barry (Can) US Postal presented by Berry Floor 19.28

Overall:
1. Dario Frigo (Ita) Fassa Bortolo 15.44.58
2. JosÈ Jufre (Spa) Colchon Relax-Fuenlabrada 0.09
3. David Latasa (Spa) Kelme-Costa Blanca 0.13
4. Leonardo Piepoli (Ita) iBanesto.com
5. Iban Mayo (Spa) Euskaltel-Euskadi 0.23
6. Santiago Perez (Spa) Phonak Hearing Systems 0.25
7. Michael Rasmussen (Den) Rabobank
8. Joaquin Rodriguez (Spa) O.N.C.E.-Eroski 0.27
9. Marcos Serrano (Spa) O.N.C.E.-Eroski 0.31
10. JosÈ Azevedo (Por) O.N.C.E.-Eroski
—
25. Lance Armstrong