Challenger
Bombardier Challenger 600
ATP Challenger Arad
ATP Challenger Brașov
ATP Challenger Tour
ATP Challenger Telde
Bombardier Challenger 850
ATP Challenger Porto-2
Challenger (Raumfähre)
ATP Challenger Brazzaville
ATP Challenger Cherbourg
ATP Challenger Maui
Chess Challenger
ATP Challenger Andrézieux-Bouthéon
ATP Challenger Timișoara
ATP Challenger Piracicaba
ATP Challenger Kachetien
ISU-Challenger-Serie
ATP Challenger Samarqand
ATP Challenger Ahmedabad
ATP Challenger São Paulo (2013–2016)
The Challenger
ATP Challenger Itajaí
ATP Challenger Drummondville
ATP Challenger Wuhan
ATP Challenger Danderyd
ATP Challenger Ostende
ATP Challenger Mantua
ATP Challenger San Miguel de Tucumán
ATP Challenger St. Ulrich in Gröden
ATP Challenger Tanger
ATP Challenger Meran
ATP Challenger Kigali
ATP Challenger Río Grande
ATP Challenger Savannah
ATP Challenger Acapulco-2
ATP Challenger Sibiu
ATP Challenger Recanati
ATP Challenger Ojai
ATP Challenger Reggio nell’Emilia
ATP Challenger Lugano
ATP Challenger Charlottesville
ATP Challenger Båstad
ATP Challenger Busan
ATP Challenger Daytona Beach
ATP Challenger Gimcheon
ATP Challenger São Paulo (2004)
ATP Challenger Manama
Challenger Series
ATP Challenger Raʿanana
ATP Challenger Pozoblanco
ATP Challenger Garmisch-Partenkirchen
ATP Challenger Tunica Resorts
ATP Challenger Córdoba
ATP Challenger Flushing Meadow
ATP Challenger Tiburon
ATP Challenger Knokke-Heist
ATP Challenger Fès
ATP Challenger Tallahassee
ATP Challenger Kuwait
ATP Challenger Hangzhou
ATP Challenger Kōbe
ATP Challenger Dharwad
ATP Challenger Dijon
ATP Challenger Toljatti
ATP Challenger Donezk
ATP Challenger Fargʻona
ATP Challenger Floridablanca
ATP Challenger Antofagasta
ATP Challenger Rogaška Slatina
ATP Challenger Besançon
ATP Challenger Tour 2009
ATP Challenger Nottingham-4
ATP Challenger Mérida
ATP Challenger Košice
ATP Challenger Székesfehérvár
ATP Challenger Sanremo
ATP Challenger Astana (seit 2016)
ATP Challenger Santa Clarita
ATP Challenger Guimarães
ATP Challenger Anning
ATP Challenger Shenzhen-3
ATP Challenger Aracaju
ATP Challenger São Paulo (seit 2020)
ATP Challenger Aptos
ATP Challenger São Paulo (2013–2015)
Bombardier Challenger 300
ATP Challenger Cortina d’Ampezzo
ATP Challenger Nottingham-2
ATP Challenger Champaign
Men’s Rimouski Challenger 2011
ATP Challenger Tulsa
ATP Challenger Granby
ATP Challenger São Leopoldo
Triple C Challenger Cars
ATP Challenger Dallas
ATP Challenger Genua
ATP Challenger Benin City
Oracle Challenger Series – Houston 2018
Munich Challenger 1989
Taipei Challenger 1992
ATP Challenger Fürth
ATP Challenger Toluca de Lerdo
ATP Challenger Ponte Vedra Beach
ATP Challenger Bogotá
ATP Challenger Saint-Brieuc
ATP Challenger Ibagué
Tangier Challenger 2000
Kolkata Challenger 2000
Compaq Challenger 2001
ATP Challenger Astana (2010–2014)
Oracle Challenger Series – Chicago 2018
Oracle Challenger Series – Houston 2019
Oracle Challenger Series – Indian Wells 2019
Kyoto Challenger 1978
Challenger Ficrea 2014
ATP Orbetello Challenger 2011
ATP Challenger Heilbronn-2
ATP Challenger Ulm
Oracle Challenger Series – Newport Beach 2019
Oracle Challenger Series – Newport Beach 2020
Oracle Challenger Series – Indian Wells 2018
ATP Challenger Prostějov
ATP Challenger Bogotá (1988–1996)
ATP Challenger Meknès
WTA Challenger Taipeh
ATP Challenger Bogotá (Bancolombia Open)
ATP Challenger São Paulo (2009–2010)
ATP Challenger Chennai
George Edward Challenger
ATP Challenger Viña del Mar
ATP Challenger La Réunion
ATP Challenger Donostia-San Sebastián
ATP Challenger San Benedetto del Tronto
Santiago Challenger 1992
ATP Challenger Orléans
Oracle Challenger Series – Indian Wells 2020
Ostend Challenger 1993
Lucknow Challenger I 1999
Tashkent Challenger 2016
ATP Challenger São Paulo (1982–2002)
Dodge Challenger
ATP Challenger Karlsruhe
Ipsos Bucharest Challenger 2007
Relyaid Natomas Challenger 2012
Nottingham Challenger I 2006
Río Grande Challenger 1997
ATP Challenger Kyōto
Crans Montana Challenger 1988
Oracle Challenger Series – New Haven 2019
Bressanone Challenger 1999
Ribeirão Preto Challenger 1979
S’Tennis Masters Challenger 2008
Wailea Men’s Challenger 2006
Tallahassee Tennis Challenger 2002
ATP Challenger Bogotá (Copa Petrobras)
Harrah’s Entertainment Challenger 2006
Freeman Men’s Challenger 2006
Freeman Men’s Challenger 2007
WTA 125
Challenger (Schiff, 1904)
ATP Challenger Santa Cruz
Oracle Challenger Series – Newport Beach 2018
Logopark ATP Challenger 2005
Harrah’s Entertainment Challenger 2005
Relyaid Natomas Racquet Club Challenger 2011
Nottingham Challenger II 2005
Challenger Hamburg – Hamburg Ladies & Gents Cup 2023
Freeman Men’s Challenger 2005
Challenger La Manche – Cherbourg 2021
Chicago Men’s Challenger 2022
Granby Challenger 1995
Kuala Lumpur Challenger I 1993
Nairobi Challenger II 1990
Challenger La Manche – Cherbourg 2019
Uncle Toby’s Challenger in Caloundra 2004
Chicago Men’s Challenger 2024
Georgia’s Rome Challenger 2022
Nairobi Challenger I 1990
ATP Challenger São Paulo (2012–2013)
Challenger La Manche – Cherbourg 2015
Challenger La Manche – Cherbourg 2016
Challenger La Manche – Cherbourg 2017
Challenger La Manche – Cherbourg 2020
Chicago Men’s Challenger 2023
Hancock Bank Men’s Challenger 2007
Challenger 3
Maccabi Men’s Challenger 2009
S’Tennis Masters Challenger 2007
STS-51-L
Hilton Waikoloa Village USTA Challenger 2007
American Express – Istanbul Challenger 2012
Lucknow Challenger II 1999
Uncle Toby’s Burnie Challenger 2004
Project Independence Men’s Challenger 2003
Hilton Waikoloa Village USTA Challenger 2002
American Express – Istanbul Challenger 2018
Charlottesville Men’s Pro Challenger 2015
Türk Telekom İzmir Challenger 2011
Challenge