Debutants
Giuliano Figueras is the youngest debutant in Tirreno-Adriatico in 1998. There are 26 debutants.
| # | Rider | Team | Age |
|---|---|---|---|
| 1 | FIGUERAS Giuliano | Mapei - Bricobi | 22y + 46d |
| 2 | BALDUCCI Gabriele | Scrigno - Gaerne | 22y + 128d |
| 3 | PIERI Dario | Scrigno - Gaerne | 22y + 191d |
| 4 | SPEZIALETTI Alessandro | Riso Scotti - MG | 23y + 56d |
| 5 | HORRILLO Pedro | Vitalicio Seguros | 23y + 165d |
| 6 | SIRONI Gianluca | Vini Caldirola - Sidermec | 23y + 256d |
| 7 | MAZZANTI Luca | Cantina Tollo - Alexia Alluminio | 24y + 35d |
| 8 | DE JONGH Steven | TVM - Farm Frites | 24y + 106d |
| 9 | MOERENHOUT Koos | Rabobank ProTeam | 24y + 126d |
| 10 | MAZZOLENI Eddy | Saeco Macchine da Caffe' - Cannondale | 24y + 225d |
| 11 | VAINŠTEINS Romāns | Kross - Selle Italia | 25y + 8d |
| 12 | DE BENI Federico | Riso Scotti - MG | 25y + 47d |
| 13 | GIROLETTI Marco | Mobilvetta - Northwave | 26y + 11d |
| 14 | ZINTCHENKO Andrei | Vitalicio Seguros | 26y + 65d |
| 15 | SCHAFFRATH Jan | Team Telekom | 26y + 175d |
| 16 | STREEL Marc | Casino - AG2R | 26y + 211d |
| 17 | LODA Nicola | Ballan | 26y + 227d |
| 18 | BERTOLINI Alessandro | Cofidis | 26y + 227d |
| 19 | PISTORE Roberto | Riso Scotti - MG | 26y + 313d |
| 20 | KNAVEN Servais | TVM - Farm Frites | 27y + 5d |
| 21 | CALI Vincent | Casino - AG2R | 27y + 323d |
| 22 | MILESI Marco | Brescialat | 28y + 40d |
| 23 | BRIGNOLI Ermanno | Riso Scotti - MG | 28y + 192d |
| 24 | LUPI Emanuele | Amore & Vita - Forzacore | 29y + 67d |
| 25 | FAUSTINI Stefano | Vini Caldirola - Sidermec | 29y + 198d |
| 26 | TEBALDI Valerio | Mobilvetta - Northwave | 32y + 252d |