Debutants
Youngest debutants in Il Lombardia in 2021. There are 52 debutants.
| # | Rider | Team | Age |
|---|---|---|---|
| 1 | TULETT Ben | Alpecin - Fenix | 20y + 44d |
| 2 | TIBERI Antonio | Trek - Segafredo | 20y + 107d |
| 3 | VACEK Karel | Team Qhubeka NextHash | 21y + 30d |
| 4 | ARROYAVE Daniel | EF Education - Nippo | 21y + 112d |
| 5 | FETTER Erik | EOLO-Kometa | 21y + 187d |
| 6 | SCHMID Mauro | Team Qhubeka NextHash | 21y + 309d |
| 7 | ARENSMAN Thymen | Team DSM | 21y + 309d |
| 8 | VAN GILS Maxim | Lotto Soudal | 21y + 318d |
| 9 | COLLEONI Kevin | Team BikeExchange | 21y + 332d |
| 10 | BUITRAGO Santiago | Bahrain - Victorious | 22y + 13d |
| 11 | CHAMPION Thomas | Cofidis | 22y + 31d |
| 12 | ALEOTTI Giovanni | BORA - hansgrohe | 22y + 137d |
| 13 | LEKNESSUND Andreas | Team DSM | 22y + 141d |
| 14 | DONOVAN Mark | Team DSM | 22y + 189d |
| 15 | BATTISTELLA Samuele | Astana - Premier Tech | 22y + 329d |
| 16 | VENCHIARUTTI Nicola | Androni Giocattoli - Sidermec | 23y + 2d |
| 17 | POGAČAR Tadej | UAE Team Emirates | 23y + 18d |
| 18 | CEPEDA Jefferson Alexander | Androni Giocattoli - Sidermec | 23y + 115d |
| 19 | KRON Andreas | Lotto Soudal | 23y + 130d |
| 20 | CAMARGO Diego Andrés | EF Education - Nippo | 23y + 159d |
| 21 | BAIS Davide | EOLO-Kometa | 23y + 190d |
| 22 | MONACO Alessandro | Bardiani-CSF-Faizanè | 23y + 247d |
| 23 | BERTHET Clément | AG2R Citroën Team | 24y + 68d |
| 24 | SIVAKOV Pavel | INEOS Grenadiers | 24y + 90d |
| 25 | VANHOUCKE Harm | Lotto Soudal | 24y + 114d |
| 26 | STOKBRO Andreas | Team Qhubeka NextHash | 24y + 184d |
| 27 | BEVILACQUA Simone | Vini Zabù | 24y + 229d |
| 28 | ALBANESE Vincenzo | EOLO-Kometa | 24y + 331d |
| 29 | BAIS Mattia | Androni Giocattoli - Sidermec | 24y + 355d |
| 30 | WHELAN James | EF Education - Nippo | 25y + 90d |
| 31 | WILLIAMS Stephen | Bahrain - Victorious | 25y + 122d |
| 32 | ROCHAS Rémy | Cofidis | 25y + 144d |
| 33 | PARET-PEINTRE Aurélien | AG2R Citroën Team | 25y + 224d |
| 34 | SUNDERLAND Dylan | Team Qhubeka NextHash | 25y + 225d |
| 35 | LAFAY Victor | Cofidis | 25y + 265d |
| 36 | BARTA Will | EF Education - Nippo | 25y + 278d |
| 37 | COSNEFROY Benoît | AG2R Citroën Team | 25y + 357d |
| 38 | TAGLIANI Filippo | Androni Giocattoli - Sidermec | 26y + 56d |
| 39 | SCHULTZ Nick | Team BikeExchange | 27y + 26d |
| 40 | SERRANO Gonzalo | Movistar Team | 27y + 53d |
| 41 | CONTRERAS Rodrigo | Astana - Premier Tech | 27y + 129d |
| 42 | MARECZKO Jakub | Vini Zabù | 27y + 162d |
| 43 | PEARSON Daniel | Vini Zabù | 27y + 225d |
| 44 | HOLMES Matthew | Lotto Soudal | 27y + 305d |
| 45 | MARTIN Guillaume | Cofidis | 28y + 122d |
| 46 | LUTSENKO Alexey | Astana - Premier Tech | 29y + 32d |
| 47 | MEURISSE Xandro | Alpecin - Fenix | 29y + 251d |
| 48 | STACCHIOTTI Riccardo | Vini Zabù | 29y + 335d |
| 49 | CAMPENAERTS Victor | Team Qhubeka NextHash | 29y + 346d |
| 50 | CHRISTIAN Mark | EOLO-Kometa | 30y + 323d |
| 51 | ORRICO Davide | Vini Zabù | 31y + 234d |
| 52 | FROOME Chris | Israel Start-Up Nation | 36y + 142d |