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