The Tour de France will be first of major three week races this year. It will start on August 29. While the Giro is scheduled to take place from October 3 and Vuelta will start on Oct 20. Giro d'Italia and Vuelta a España will overlap in October for few stages. And will be shortened to 18 stages and will finish in mid of November.
Another anticipated race will be Road World Championships from September 20th until September 27. The host will be Aigle-Martigny in Switzerland.

List of active 2020 cycling road races:
Jan 24
2021
Starts in 8 days
UCI Cyclo-Cross World Cup
Sky Sport (New Zealand), TV 2 Sport 1 (Norway), SuperSport Africa (Africa)
Feb 03
Feb 07
2021
Starts in 18 days
Volta Comunitat Valenciana
#72 edition | First race: 1929
Class: 2.Pro
Competing teams: Mitchelton-Scott, INEOS Grenadiers, Team Jumbo-Visma, UAE Team Emirates, Deceuninck-QuickStep, Bahrain - McLaren, Lotto Soudal, Movistar Team, AG2R La Mondiale, CCC Team, Astana Pro Team, Direct Energie
Top riders: Valverde Alejandro, Gilbert Philippe, Van Avermaet Greg, Kristoff Alexander, Martin Dan, Degenkolb John, Kwiatkowski Michał, Sánchez Luis León, Rojas José Joaquín, Gallopin Tony

Last race winners:
2020 Pogačar Tadej
2019 Izagirre Ion
2018 Valverde Alejandro
2017 Quintana Nairo
2016 Poels Wout
2008 Plaza Rubén
2007 Valverde Alejandro
2006 Colom Antonio
2005 Petacchi Alessandro
2004 Valverde Alejandro
Feb 11
Feb 14
2021
Starts in 26 days
Tour de la Provence
#6 edition | First race: 2016
Competing teams: INEOS Grenadiers, Team Jumbo-Visma, Deceuninck-QuickStep, Trek-Segafredo, EF Pro Cycling, Cofidis Solutions Credits, Movistar Team, AG2R La Mondiale, Team Sunweb, CCC Team, Groupama-FDJ, Team Arkéa Samsic
Top riders: Quintana Nairo, Pinot Thibaut, Gesink Robert, Pozzovivo Domenico, Kreuziger Roman, Bouhanni Nacer, Kelderman Wilco, Nizzolo Giacomo, Vanmarcke Sep, Barguil Warren

Last race winners:
2020 Quintana Nairo
2019 Izagirre Gorka
2018 Geniez Alexandre
2017 Dennis Rohan
2016 Voeckler Thomas
Feb 14
2021
Starts in 29 days
Clasica De Almeria
#35 edition | First race: 1992
Class: 1.Pro
Competing teams: Mitchelton-Scott, UAE Team Emirates, Bora-Hansgrohe, Cofidis Solutions Credits, Movistar Team, AG2R La Mondiale, Team Arkéa Samsic, Astana Pro Team, Burgos BH, Israel Start-Up Nation, Vital Concept - B&B Hotels, Caja Rural-Seguros RGA
Top riders: Kristoff Alexander, Sánchez Luis León, Viviani Elia, Albasini Michael, Roelandts Jürgen, Coquard Bryan, Naesen Oliver, Ackermann Pascal, Van Poppel Danny, Drucker Jempy

Last race winners:
2020 Ackermann Pascal
2019 Ackermann Pascal
2018 Ewan Caleb
2017 Cort Magnus
2016 Howard Leigh
2015 Cavendish Mark
2014 Bennett Sam
2013 Renshaw Mark
2012 Matthews Michael
2011 Pelucchi Matteo
Feb 17
Feb 21
2021
Starts in 32 days
Vuelta a Andalucia
#67 edition | First race: 1925
Class: 2.Pro
Competing teams: Mitchelton-Scott, Team Jumbo-Visma, UAE Team Emirates, Bahrain - McLaren, Lotto Soudal, Movistar Team, AG2R La Mondiale, Astana Pro Team, Alpecin-Fenix, Riwal Readynez Cycling Team, Sport Vlaanderen-Baloise, Fundacion - Orbea
Top riders: Fuglsang Jakob, Terpstra Niki, Colbrelli Sonny, Izagirre Ion, Roelandts Jürgen, Landa Mikel, Coquard Bryan, Nieve Mikel, Bakelants Jan, Naesen Oliver

Last race winners:
2020 Fuglsang Jakob
2019 Fuglsang Jakob
2018 Wellens Tim
2017 Valverde Alejandro
2016 Valverde Alejandro
2015 Froome Chris
2014 Valverde Alejandro
2013 Valverde Alejandro
2012 Valverde Alejandro
2011 Irizar Markel
Feb 17
Feb 21
2021
Starts in 32 days
Tour of Algarve
#49 edition | First race: 1936
Class: 2.Pro
Competing teams: INEOS Grenadiers, UAE Team Emirates, Deceuninck-QuickStep, Trek-Segafredo, Bora-Hansgrohe, Lotto Soudal, Cofidis Solutions Credits, Team Sunweb, CCC Team, Groupama-FDJ, Astana Pro Team, Israel Start-Up Nation
Top riders: Gilbert Philippe, Nibali Vincenzo, Van Avermaet Greg, Kristoff Alexander, Martin Dan, Mollema Bauke, Costa Rui, Kwiatkowski Michał, Sánchez Luis León, Viviani Elia

Last race winners:
2020 Evenepoel Remco
2019 Pogačar Tadej
2018 Kwiatkowski Michał
2017 Roglič Primož
2016 Thomas Geraint
2015 Thomas Geraint
2014 Kwiatkowski Michał
2013 Martin Tony
2012 Porte Richie
2011 Martin Tony
Feb 21
Feb 27
2021
Starts in 36 days
UAE Tour
#7 edition | First race: 2015
Class: 2.UWT (ProTour)
Competing teams: Mitchelton-Scott, INEOS Grenadiers, Team Jumbo-Visma, UAE Team Emirates, Deceuninck-QuickStep, Trek-Segafredo, Bora-Hansgrohe, Bahrain - McLaren, Lotto Soudal, Cofidis Solutions Credits, Movistar Team, AG2R La Mondiale
Top riders: Valverde Alejandro, Froome Chris, Cavendish Mark, Martin Tony, Ulissi Diego, Démare Arnaud, Pozzovivo Domenico, Visconti Giovanni, Rojas José Joaquín, Majka Rafał

Last race winners:
2020 Yates Adam
2019 Roglič Primož
2018 Valverde Alejandro
2017 Costa Rui
2016 Kangert Tanel
2015 Chaves Esteban
Feb 28
2021
Starts in 43 days
Kuurne-Brussels-Kuurne
#74 edition | First race: 1946
Class: 1.Pro
Competing teams: Mitchelton-Scott, INEOS Grenadiers, UAE Team Emirates, Deceuninck-QuickStep, Trek-Segafredo, Bora-Hansgrohe, Bahrain - McLaren, EF Pro Cycling, Lotto Soudal, Cofidis Solutions Credits, Movistar Team, AG2R La Mondiale
Top riders: Van Avermaet Greg, Kristoff Alexander, Boasson Hagen Edvald, Degenkolb John, Terpstra Niki, Colbrelli Sonny, Nizzolo Giacomo, Trentin Matteo, Roelandts Jürgen, štybar Zdeněk

Last race winners:
2020 Asgreen Kasper
2019 Jungels Bob
2018 Groenewegen Dylan
2017 Sagan Peter
2016 Stuyven Jasper
2015 Cavendish Mark
2014 Boonen Tom
2012 Cavendish Mark
2011 Sutton Chris
2010 Traksel Bobbie