| 01.05 | |  Campeonato Panamericano de Ruta TT | CC | |
| 01.05 | 05.05 |  Five Rings of Moscow | 2.2 | |
| 01.05 | 05.05 |  Tour of the Gila | 2.2 | |
| 01.05 | |  Eschborn-Frankfurt | 1.UWT | |
| 01.05 | |  31 memorial Andrzeja Trochanowskiego | 1.2 | |
| 02.05 | 05.05 |  Tour of Mesopotamia | 2.2 | |
| 02.05 | | 20 Memorial Romana Sieminskiego | 1.2 | |
| 03.05 | 05.05 |  Vuelta Asturias Julio Alvarez Mendo | 2.1 | |
| 04.05 | |  Ronde van Overijssel | 1.2 | |
| 04.05 | |  GP Himmerland Rundt | 1.2 | |
| 05.05 | |  Circuito del Porto - Trofeo Arvedi | 1.2 | |
| 05.05 | | Skive-Løbet | 1.2 | |
| 05.05 | |  100 Cycle Challenge | 1.2 | |
| 05.05 | |  Entre Brenne et Montmorillonnais | 1.2 | |
| 05.05 | | Campeonato Panamericano de Ruta | CC | |
| 09.05 | 12.05 | Vuelta Ciclista Comunidad de Madrid | 2.1 | |
| 09.05 | 12.05 | Rhône-Alpes Isère Tour | 2.2 | |
| 10.05 | 12.05 | CCC Tour - Grody Piastowskie | 2.2 | |
| 11.05 | | PWZ Zuidenveld Tour | 1.2 | |
| 11.05 | 02.06 | Giro d'Italia | 2.UWT | |
| 11.05 | |  Visegrad 4 Kerekparverseny | 1.2 | |
| 11.05 | 12.05 |  National Road Championships - Bolivia | CN | Geannuleerd |
| 11.05 | |  111th Scandinavian Race in Uppsala 1909-2019 | 1.2 | |
| 11.05 | |  Minsk Cup | 1.2 | |
| 11.05 | |  Sundvolden GP | 1.2 | |
| 12.05 | 18.05 | Amgen Tour of California | 2.UWT | |
| 12.05 | | Grand Prix de la Somme | 1.2 | |
| 12.05 | |  Flèche Ardennaise | 1.2 | |
| 12.05 | | Ringerike GP | 1.2 | |
| 12.05 | |  Visegrad 4 Bicycle Race- GP Slovakia | 1.2 | |
| 12.05 | | Grand Prix Minsk | 1.2 | |
| 15.05 | 19.05 | Tour of Limpopo | 2.2 | |
| 17.05 | 19.05 | Tour d'Eure-et-Loir | 2.2 | |
| 17.05 | 19.05 | Vuelta Aragón | 2.1 | |
| 17.05 | 19.05 | Yavuz Sultan Selim Tour of Black Sea | 2.2 | |
| 19.05 | | Grand Prix Criquielion | 1.2 | |
| 19.05 | |  National Road Championships - Austria TT | CN | |
| 19.05 | 26.05 |  Tour of Japan | 2.1 | |
| 20.05 | 24.05 |  76th Tour of Albania | 2.2 | |
| 22.05 | 26.05 | Baltyk - Karkonosze Tour | 2.2 | |
| 23.05 | |  Chabany Race | 1.2 | |
| 23.05 | 25.05 |  Tour of Estonia | 2.1 | |
| 23.05 | 26.05 |  PRUride PH | 2.2 | |
| 24.05 | 26.05 | Tour de l'Ain | 2.1 | |
| 24.05 | 26.05 | A Travers les Hauts de France | 2.2 | |
| 24.05 | 26.05 | Hammer Stavanger | 2.1 | |
| 24.05 | | Horizon Park Race for Peace | 1.2 | |
| 25.05 | | Horizon Park Race Maidan | 1.2 | |
| 26.05 | | Grote Prijs Marcel Kint | 1.1 | |
| 26.05 | 30.05 |  Tour of Taiyuan | 2.2 | |
| 27.05 | | Winston Salem Cycling Classic | 1.1 | |
| 29.05 | 02.06 |  Flèche du Sud | 2.2 | |
| 30.05 | 02.06 | Tour de Kumano | 2.2 | |
| 30.05 | 02.06 | Szlakiem Walk Majora Hubala | 2.1 | |
| 30.05 | | Circuit de Wallonie | 1.1 | |
| 31.05 | 02.06 | Tour de la Mirabelle | 2.2 | |
Materiaalzone 
Fietstoerisme 
