Debutants
Matej Jurčo is the youngest debutant in GP Chiasso in 2004. There are 28 debutants.
| # | Rider | Team | Age |
|---|---|---|---|
| 1 | JURČO Matej | De Nardi | 19y + 204d |
| 2 | MONFORT Maxime | Landbouwkrediet - Colnago | 21y + 45d |
| 3 | MATZBACHER Andreas | Saeco | 22y + 52d |
| 4 | ZAUGG Oliver | Saunier Duval - Prodir | 22y + 295d |
| 5 | BAZHENOV Alexandre | Domina Vacanze | 22y + 308d |
| 6 | GRYSCHENKO Ruslan | Landbouwkrediet - Colnago | 23y + 24d |
| 7 | LAGUTIN Sergey | Landbouwkrediet - Colnago | 23y + 45d |
| 8 | MUTO Pasquale | Miche | 23y + 280d |
| 9 | GONZALEZ Javier Alberto | Saunier Duval - Prodir | 24y + 107d |
| 10 | GALDÓS Aitor | Team Nippo | 24y + 112d |
| 11 | FANELLI Ivan | Amore & Vita - Beretta | 25y + 138d |
| 12 | LOBATO Rubén | Saunier Duval - Prodir | 25y + 180d |
| 13 | GAYNITDINOV Dmitri | Team ICET | 25y + 254d |
| 14 | WEGELIUS Charles | De Nardi | 25y + 308d |
| 15 | SCHOLZ Ronny | Gerolsteiner | 25y + 310d |
| 16 | PASSUELLO Domenico | Amore & Vita - Beretta | 25y + 341d |
| 17 | PELLIZOTTI Franco | Alessio - Bianchi | 26y + 44d |
| 18 | GOLČER Jure | Formaggi Pinzolo Fiavè | 26y + 83d |
| 19 | CLINGER David | Domina Vacanze | 26y + 98d |
| 20 | NOCENTINI Rinaldo | Acqua & Sapone - Caffe Mokambo | 26y + 156d |
| 21 | BURROW Jamie | Amore & Vita - Beretta | 27y + 36d |
| 22 | CLAIN Médéric | Cofidis, le Crédit par Téléphone | 27y + 122d |
| 23 | STRAUSS Marcel | Gerolsteiner | 27y + 197d |
| 24 | POWER Ciarán | Navigators Insurance Cycling Team | 27y + 296d |
| 25 | BALDWIN Christopher | Navigators Insurance Cycling Team | 28y + 136d |
| 26 | HONDO Danilo | Gerolsteiner | 30y + 55d |
| 27 | BORGHI Ruggero | De Nardi | 33y + 270d |
| 28 | NOÈ Andrea | Alessio - Bianchi | 35y + 44d |