| 01.05 | |  Tintrio - Omloop van het Waasland | 1.2 | |
| 01.05 | 03.05 |  Grande Prémio Anicolor | 2.1 | |
| 01.05 | |  Eschborn-Frankfurt | 1.UWT | |
| 01.05 | |  GP Vorarlberg p/b Radhaus Rankweil | 1.2 | |
| 02.05 | |  Grand Prix Herning | 1.2 | |
| 02.05 | |  Ronde van Overijssel | 1.2 | |
| 03.05 | | De HIVE Slag om Woensdrecht | 1.2 | |
| 03.05 | | Fyn Rundt - Tour of Funen | 1.2 | |
| 03.05 | | Lotto Famenne Ardenne Classic | 1.1 | |
| 03.05 | |  Giro dell'Appennino | 1.1 | |
| 06.05 | 10.05 |  ΔΕΗ Tour of Hellas | 2.1 | |
| 07.05 | 10.05 |  Tour de Kumano | 2.2 | |
| 09.05 | |  Grand Prix du Morbihan | 1.Pro | |
| 09.05 | |  Sundvolden GP | 1.2 | |
| 09.05 | 31.05 | Giro d'Italia | 2.UWT | |
| 09.05 | |  Kryterium Asów - Beskid Race | 1.2 | |
| 10.05 | | Tro-Bro Léon | 1.Pro | |
| 10.05 | | Kryterium Asów - Beskid Classic | 1.2 | |
| 10.05 | 14.05 |  Baku-Khankendi Azerbaijan Cycling race | 2.1 | |
| 10.05 | | Ringerike GP | 1.2 | |
| 13.05 | 17.05 |  Flèche du Sud | 2.1 | |
| 13.05 | 17.05 |  Tour de Hongrie | 2.Pro | |
| 14.05 | | Circuit de Wallonie | 1.1 | |
| 16.05 | | Tour du Finistère Pays de Quimper | 1.1 | |
| 16.05 | 17.05 |  Yellow River Estuary (Dongying) Road Cycling Race | 2.2 | |
| 17.05 | | VDL Omloop der Kempen | 1.2 | |
| 17.05 | | Circuito del Porto - Trofeo Arvedi | 1.2 | |
| 17.05 | | Flèche Ardennaise | 1.2 | |
| 17.05 | |  Gran Premio New York City | 1.2 | |
| 17.05 | | Boucles de l'Aulne - Châteaulin | 1.1 | |
| 17.05 | | Rund um Köln | 1.1 | |
| 18.05 | 22.05 |  Cycling Tour of Albania | 2.2 | |
| 19.05 | | Classique Dunkerque / Grand prix des Hauts de France | 1.Pro | |
| 20.05 | 24.05 | Grande Prémio Internacional Beiras e Serra da Estrela | 2.1 | |
| 20.05 | 24.05 | 4 Jours de Dunkerque / Grand Prix des Hauts de France | 2.Pro | |
| 23.05 | | Veenendaal-Veenendaal | 1.1 | |
| 23.05 | | Due Giorni Marchigiana - G.P. Santa Rita | 1.2 | |
| 24.05 | 31.05 | Tour of Japan | 2.2 | |
| 24.05 | | Grand Prix Criquielion | 1.1 | |
| 24.05 | | Due Giorni Marchigiana - Trofeo Città di Castelfidardo | 1.2 | |
| 25.05 | | Paris - Troyes | 1.2 | |
| 25.05 | | Antwerp Port Epic / Sels Trophy | 1.1 | |
| 27.05 | 31.05 | Alpes Isère Tour | 2.2 | |
| 28.05 | 31.05 | Boucles de la Mayenne - Crédit Mutuel | 2.Pro | |
| 28.05 | 31.05 | Tour of Norway | 2.Pro | |
| 31.05 | 07.06 |  Vuelta Ciclista a Venezuela | 2.2 | |
Materiaalzone 
Fietstoerisme 
