| 01.05 | |  National Road Championships - Colombia TT | CN | |
| 01.05 | |  Kampioenschap van Libië | CN | |
| 01.05 | |  Memorial Andrzeja Trochanowskiego | 1.2 | |
| 01.05 | |  meiprijs - Ereprijs Victor De Bruyne | 1.2 | |
| 02.05 | |  National Road Championships - Venezuela TT | CN | |
| 02.05 | |  GP Industria & Artigianato | 1.1 | |
| 02.05 | |  Ronde van Overijssel | 1.2 | |
| 02.05 | |  Mayor Cup | 1.2 | |
| 02.05 | |  Grand Prix Herning | 1.2 | |
| 02.05 | | National Road Championships - Colombia | CN | |
| 03.05 | |  Subida al Naranco | 1.1 | |
| 03.05 | | Giro di Toscana | 1.1 | |
| 03.05 | | Memorial of Oleg Dyachenko | 1.2 | |
| 03.05 | | Circuito del Porto - Trofeo Arvedi | 1.2 | |
| 03.05 | |  Trophée des Grimpeurs | 1.1 | |
| 03.05 | | National Road Championships - Venezuela | CN | |
| 06.05 | 10.05 | Giro del Friuli Venezia Giulia | 2.2 | |
| 06.05 | 10.05 | Five rings of Moscow | 2.2 | |
| 08.05 | 10.05 | Szlakiem Grodòw Piastowskich | 2.1 | |
| 09.05 | 13.05 |  Presidential Tour of Iran | 2.2 | |
| 09.05 | |  101th Scandinavian Race Uppsala | 1.2 | |
| 10.05 | | Omloop der Kempen | 1.2 | |
| 10.05 | |  National Road Championships - Cyprus | CN | |
| 10.05 | | GP Industrie del Marmo | 1.2 | |
| 12.05 | | National Road Championships - Cyprus TT | CN | |
| 12.05 | | Grand Prix of Moscow | 1.2 | |
| 13.05 | | Batavus Prorace | 1.1 | |
| 13.05 | 17.05 |  Doble Sucre Potosi G.P. Cemento Fancesa | 2.2 | |
| 14.05 | 17.05 |  GP Internacional Paredes Rota dos Móveis | 2.2 | |
| 15.05 | 17.05 | Tour de Picardie | 2.1 | |
| 16.05 | | GP Copenhagen - Odsherred Classic | 1.2 | |
| 17.05 | 24.05 |  FBD Insurance Ras | 2.2 | |
| 17.05 | 24.05 |  Tour of Japan | 2.2 | |
| 17.05 | | Tour de Rijke | 1.1 | |
| 17.05 | |  National Road Championships - Puerto Rico TT | CN | |
| 18.05 | 24.05 | Olympia's Tour | 2.2 | |
| 20.05 | 24.05 |  Flèche du Sud | 2.2 | |
| 20.05 | 24.05 | Circuit de Lorraine Professionnel | 2.1 | |
| 23.05 | |  National Road Championships - Guatemala TT | CN | |
| 28.05 | 31.05 | Tour de Kumano | 2.2 | |
| 29.05 | |  Velika Nagrada Ptuja | 1.2 | Geannuleerd |
| 29.05 | 01.06 | Tour de Gironde | 2.2 | |
| 29.05 | |  Tallinn - Tartu Grand Prix | 1.1 | |
| 30.05 | |  GP Kooperativa | 1.2 | |
| 30.05 | |  National Road Championships - Morocco | CN | |
| 30.05 | | VN Kranja - Memorijal Filipa Majcna | 1.1 | |
| 30.05 | | Grand Prix de Plumelec-Morbihan | 1.1 | |
| 30.05 | | SEB Tartu Grand Prix | 1.1 | |
| 31.05 | | Boucles de l'Aulne | 1.1 | |
| 31.05 | | Grand Prix Boka | 1.2 | |
| 31.05 | |  U.S. Air Force Cycling Classic | 1.2 | |
Materiaalzone 
Fietstoerisme 
