| 01.05 | |  Eschborn-Frankfurt | 1.UWT | |
| 01.05 | |  Circuito del Porto - Trofeo Arvedi | 1.2 | |
| 03.05 | 08.05 |  Tour du Bénin | 2.2 | |
| 03.05 | 08.05 |  4 Jours de Dunkerque | 2.Pro | |
| 06.05 | 29.05 | Giro d'Italia | 2.UWT | |
| 06.05 | |  National Road Championships - Panama TT | CN | |
| 07.05 | |  Ronde van Overijssel | 2.2 | |
| 07.05 | |  Sundvolden GP | 1.2 | |
| 08.05 | | National Road Championships - Panama | CN | |
| 08.05 | |  Flèche Ardennaise | 1.2 | |
| 08.05 | | Ringerike GP | 1.2 | |
| 11.05 | 15.05 |  Tour de Hongrie | 2.1 | |
| 12.05 | 15.05 |  Tour de Lviv Region | 2.2 | Geannuleerd |
| 12.05 | |  Campeonato Panamericano de Ruta TT | CC | |
| 14.05 | | Grand Prix du Morbihan | 1.Pro | |
| 15.05 | | Tro-Bro Léon | 1.Pro | |
| 15.05 | 22.05 |  Tour of Japan | 2.1 | |
| 15.05 | | Campeonato Panamericano de Ruta | CC | |
| 16.05 | 22.05 |  Tour du Mali | 2.2 | Geannuleerd |
| 19.05 | 22.05 |  Tour of Limpopo | 2.2 | Geannuleerd |
| 19.05 | 22.05 |  Joe Martin Stage Race | 2.2 | |
| 20.05 | 22.05 |  Sri Lanka T-Cup | 2.2 | Geannuleerd |
| 21.05 | | Veenendaal-Veenendaal Classic | 1.1 | |
| 21.05 | |  Grand Prix Herning | 1.2 | |
| 21.05 | | Tour du Finistère | 1.1 | |
| 22.05 | | Antwerp Port Epic / Sels Trophy | 1.1 | |
| 22.05 | | Fyn Rundt - Tour of Funen | 1.2 | |
| 22.05 | |  GP Gorenjska | 1.2 | |
| 22.05 | | Boucles de l'Aulne - Châteaulin | 1.1 | |
| 22.05 | | Rund um Köln | 1.1 | |
| 24.05 | 29.05 | Tour of Norway | 2.Pro | |
| 25.05 | 29.05 |  Flèche du Sud | 2.2 | |
| 25.05 | 29.05 | Alpes Isère Tour | 2.2 | |
| 26.05 | 29.05 | Boucles de la Mayenne | 2.Pro | |
| 26.05 | | Circuit de Wallonie | 1.1 | |
| 26.05 | 28.05 |  Tour of Estonia | 2.1 | |
| 26.05 | 29.05 | Tour de la Mirabelle | 2.2 | |
| 27.05 | 29.05 | Tour de Kumano | 2.2 | |
| 28.05 | | Kyiv Cup | 1.2 | Geannuleerd |
| 29.05 | | Kyiv Green Race | 1.2 | Geannuleerd |
| 29.05 | | Marcel Kint Classic | 1.1 | |
| 30.05 | | Cycling Stars Criterium Belluno | CRTP | Geannuleerd |
| 30.05 | | Kyiv Speed - Challenge | 1.2 | Geannuleerd |
| 31.05 | 04.06 |  Tour of Albania | 2.2 | |
| 31.05 | | Cycling Stars Criterium Valdobbiadene | CRTP | |
| 31.05 | | Mercan'Tour Classic Alpes-Maritimes | 1.1 | |
Materiaalzone 
Fietstoerisme 
