| 01.04 | |  Oceania Cycling Championships | CC | |
| 01.04 | |  Volta Limburg Classic | 1.1 | |
| 01.04 | |  Gran Premio Miguel Indurain | 1.Pro | |
| 01.04 | 06.04 |  Tour of Thailand | 2.1 | |
| 02.04 | |  Ronde van Vlaanderen | 1.UWT | |
| 03.04 | 08.04 | Itzulia Basque Country | 2.UWT | |
| 04.04 | 07.04 |  Région Pays de la Loire Tour | 2.1 | |
| 05.04 | | Scheldeprijs | 1.Pro | |
| 06.04 | 09.04 | Circuit des Ardennes | 2.2 | |
| 09.04 | | Paris-Roubaix | 1.UWT | |
| 11.04 | 14.04 |  Giro di Sicilia | 2.1 | |
| 11.04 | | Paris - Camembert | 1.1 | |
| 12.04 | | De Brabantse Pijl | 1.Pro | |
| 12.04 | 16.04 | Tour du Loir et Cher | 2.2 | |
| 14.04 | | Classic Grand Besançon Doubs | 1.1 | |
| 14.04 | |  Elite Road Central American Championships TT | 1.2 | |
| 15.04 | | Arno Wallaard Memorial | 1.2 | |
| 15.04 | | Tour du Jura Cycliste | 1.1 | |
| 16.04 | | Tour du Doubs | 1.1 | |
| 16.04 | | Amstel Gold Race | 1.UWT | |
| 17.04 | 21.04 | Tour of the Alps | 2.Pro | |
| 19.04 | 22.04 |  Belgrade Banjalu | 2.2 | |
| 19.04 | | La Flèche Wallonne | 1.UWT | |
| 19.04 | | Road Continental Pan-Am Championships TT | CC | |
| 21.04 | |  Tour of Isfahan | 1.2 | Geannuleerd |
| 23.04 | | Road Continental Pan-Am Championships | CC | |
| 23.04 | | Liège-Bastogne-Liège | 1.UWT | |
| 23.04 | |  Rutland-Melton CiCLE Classic | 1.2 | |
| 24.04 | | Tour of Shiraz | 1.2 | Geannuleerd |
| 25.04 | 30.04 |  Tour de Romandie | 2.UWT | |
| 25.04 | 01.05 | Le Tour de Bretagne Cycliste | 2.2 | |
| 26.04 | 30.04 |  Tour of the Gila | 2.2 | |
| 28.04 | 30.04 | Vuelta Asturias Julio Alvarez Mendo | 2.1 | |
| 29.04 | | Leiedal Koerse | CRTP | |
| 30.04 | |  GP Vorarlberg p/by GLS Austria | 1.2 | |
Materiaalzone 
Fietstoerisme 
