| 01.05 | |  National Road Championships - Belgium TT | CN | |
| 01.05 | |  Memorial Andrzeja Trochanowskiego | 1.2 | |
| 01.05 | |  Mayor Cup | 1.2 | |
| 02.05 | | Memorial of Oleg Dyachenko | 1.2 | |
| 02.05 | |  Skive-Løbet | 1.2 | |
| 03.05 | | Grand Prix of Moscow | 1.2 | |
| 03.05 | | Himmerland Rundt | 1.2 | |
| 03.05 | |  62ste Ronde van Overijssel | 1.2 | |
| 04.05 | | Destination Thy | 1.2 | |
| 04.05 | |  Circuito del Porto - Trofeo Arvedi | 1.2 | |
| 04.05 | |  Grand Prix de la Somme | 1.1 | |
| 04.05 | |  National Road Championships - Argentina | CN | |
| 05.05 | 09.05 | Five rings of Moscow | 2.2 | |
| 07.05 | 11.05 |  Tour d'Azerbaïdjan | 2.1 | |
| 08.05 | |  Pan American Championship TT | CC | |
| 09.05 | |  Challenge du Prince - Trophée Princier | 1.2 | |
| 09.05 | 11.05 | Szlakiem Grodòw Piastowskich | 2.1 | |
| 10.05 | |  Berner Rundfahrt / Tour de Berne | 1.2 | |
| 10.05 | |  Hadeland GP | 1.2 | |
| 10.05 | |  Scandinavian Race in Uppsala | 1.2 | |
| 10.05 | | Challenge du Prince - Trophée de l Anniversaire | 1.2 | |
| 11.05 | | Pan American Championship | CC | |
| 11.05 | | Circuit de Wallonie Ville de Fleurus | 1.2 | |
| 11.05 | | Ringerike GP | 1.2 | |
| 12.05 | 17.05 | Royal Smilde Olympia's Tour | 2.2 | |
| 12.05 | | Challenge du Prince - Trophée de la Maison Royale | 1.2 | |
| 13.05 | | Visegrad 4 Bicycle Race - GP Polski Via Odra | 1.2 | |
| 15.05 | |  Visegrad 4 Bicycle Race - GP Czech Republic | 1.2 | |
| 15.05 | 18.05 | Rhône-Alpes Isère Tour | 2.2 | |
| 16.05 | 18.05 |  Vuelta a Castilla y Leon | 2.1 | |
| 16.05 | 18.05 | Tour de Picardie | 2.1 | |
| 16.05 | |  Visegrad 4 Bicycle Race - GP Slovakia | 1.2 | |
| 17.05 | | Grand Prix Criquielion | 1.2 | |
| 18.05 | |  Garmin Velothon Berlin | 1.1 | |
| 18.05 | 25.05 |  An Post Ras | 2.2 | |
| 18.05 | 25.05 |  Tour of Japan | 2.1 | |
| 23.05 | 25.05 | Paris-Arras Tour | 2.2 | |
| 24.05 | 25.05 |  World Ports Classic | 2.1 | |
| 24.05 | |  National Road Championships - USA TT | CN | |
| 25.05 | | Simac Omloop der Kempen | 1.2 | |
| 26.05 | | National Road Championships - USA | CN | |
| 28.05 | 01.06 | Tour des Fjords | 2.1 | |
| 28.05 | 01.06 |  Flèche du Sud | 2.2 | |
| 29.05 | |  Asian Cycling Championship TT | CC | |
| 29.05 | 31.05 |  Tour of Estonia | 2.1 | |
| 29.05 | 01.06 | Tour de Gironde | 2.2 | |
| 29.05 | 01.06 | Tour de Kumano | 2.2 | |
| 30.05 | |  Race Horizon Park 1 | 1.2 | |
| 31.05 | | Race Horizon Park 2 | 1.2 | |
| 31.05 | | Grand Prix de Plumelec-Morbihan | 1.1 | |
Materiaalzone 
Fietstoerisme 
