Finse Challenge
Challenge Tour
Tsjechisch Challenge Open
Moskou Challenge
F355 Challenge
Formby Hall Challenge
English Challenge
Wales Challenge
Scottish Challenge
Norton Challenge P86
Sun City Challenge
Norwegian Challenge
Champions Challenge
Challenge Sprint Pro
World Challenge (golf)
Challenge-Brownsville
USA Pro Challenge
Polar Challenge
Estoril Challenge
Challenge of Ireland
Dutch Challenge Open
Ice Bucket Challenge
Spaans Challenge Open
Watersley Ladies Challenge
Challenge League
Bad Griesbach Challenge Tour
Challenge response-authenticatie
Nedbank Golf Challenge
Challenge Cup (Newfoundland en Labrador)
Allianz Challenge de France
Slovakia Challenge 2014
IAAF Hammer Throw Challenge
F430 Challenge
Oceânico Group Pro-Am Challenge
CEV Challenge Cup (mannen)
Azerbaijan Challenge Open 2014
Charlie Charlie Challenge
Challenge-handshake authentication protocol
IAAF World Combined Events Challenge
USA Pro Challenge 2014
Italian Challenge
CEV Challenge Cup (vrouwen)
Challenge Mallorca
Dutch Beer Challenge
Mini Challenge
Bandai Golf: Challenge Pebble Beach
Challenge Trophy
LuK Challenge Chrono
IAAF World Challenge
World Solar Challenge
Europese Challenge Tour 1999
Bad Griesbach Challenge Tour 2014
Challenge de Madrid
The Challenge
Champions Challenge (hockey)
Challenge Cup
EuroCup Challenge
Beijing World Challenge
USA Pro Cycling Challenge 2013
Champions Challenge mannen 2001
A2 Racer: World Challenge
Challenge Aero
AFC Challenge League
Teen Challenge
Europese Challenge Tour 2011
Turkish Airlines Challenge
World Challenge
Champions Challenge mannen 2003
Global Green Challenge
IPB Challenge
Challenge Tour Championship
Champions Challenge mannen 2005
USA Pro Challenge 2015
Wendy's Charity Challenge
Champions Challenge vrouwen 2002
Champions Challenge II (hockey)
Europese Challenge Tour 2014
Challenge Sprint Pro 2011
Is Molas Challenge
Bergson Winter Challenge
World Solar Challenge 2007
Vodafone Challenge
World Solar Challenge 2009
Dragon Challenge
Fenkil Northern Red Sea Challenge
Gujarat Kensville Challenge
AFC Challenge Cup 2012 (kwalificatie)
Sun International Challenge
Graceland Challenge
World Solar Challenge 2011
Challenge Records
Europese Challenge Tour 2010
Northern Ireland Open (golf)
Champions Challenge mannen 2012
Champions Challenge vrouwen 2003
AFC Challenge Cup
Europese Challenge Tour 2013
Dutch Beer Challenge 2016
Bio Challenge
Aziatische Formule Renault Challenge
CEV Challenge Cup
Russian Challenge Cup
Tsjechisch Challenge Open 2013
White van man challenge
Dutch Beer Challenge 2018
Intercontinental Rally Challenge in 2008
Scottish League Challenge Cup
Europese Challenge Tour 1995
AFC Challenge Cup 2010 (kwalificatie)
Dutch Beer Challenge 2019
Europese Challenge Tour 2012
Radio Algoa Challenge
Dutch Supercar Challenge
Europese Challenge Tour 1994
Chip's Challenge
Challenge Mallorca 2011
Intercontinental Rally Challenge in 2007
Super Sport Challenge
Champions Challenge vrouwen 2005
NHL Open Ice: 2 on 2 Challenge
Intercontinental Rally Challenge in 2009
Plaza Challenge
International Rally Challenge in 2006
International Documentary Challenge
Champions Challenge vrouwen 2012
Dutch Beer Challenge 2021
Challenge Trophy 1967
Challenge Chargeurs
Europese Challenge Tour 1993
Women's Challenge
Challenge Sprint Pro 2014
Dutch Beer Challenge 2022
Swiss Challenge 2013
Dutch Beer Challenge 2017
Pilsen Golf Challenge
Challenge de Catalunya
Postbank Challenge
Challenge Sprint Pro 2013
Europese Challenge Tour 1991
Steel Challenge
Intercontinental Rally Challenge in 2010
Challenge Trophy 1973
Challenge de Catalunya 2014
Nedbank Golf Challenge 2012
World Solar Challenge 2013
Lunar Lander Challenge
City Nature Challenge
Self Driving Challenge
Le Vaudreuil Golf Challenge
Ferrari 458 Challenge
Ladies Norwegian Challenge
National Film Challenge
Intercontinental Rally Challenge
Sun Boardwalk Golf Challenge
World Solar Challenge 2015
Dutch Beer Challenge 2023
Ronde van Spanje voor vrouwen
Champions Challenge mannen 2011
Credit Suisse Challenge
Champions Challenge II mannen 2011
Challenge Sprint Pro 2012
Nashua Wild Coast Sun Challenge
Europese Challenge Tour 1990
Scottish Challenge 2014
Challenge Mallorca 2004
Over de streep
WPGA International Challenge
Challenge Mallorca 2006
Challenge Trophy 1974
Reflexity: Pinball Challenge
Doc Salbe PGA European Challenge
Swiss Challenge 2014
Challenge Desgrange-Colombo 1958
Dubliner Challenge
Saker Sportscar Challenge
Intercontinental Rally Challenge in 2012
Intercontinental Rally Challenge in 2011
Finnish Challenge 2012
Champions Challenge II vrouwen 2011
Challenge of Tutankhamon
Europese Challenge Tour 2007
Challenge Trophy 1977
AFC Challenge Cup 2008 (kwalificatie)
Wild Waves Golf Challenge
Challenge Tour Grand Final
Can Grannies do donuts?
Challenge Mallorca 2007
Challenge Desgrange-Colombo 1953
Challenge Roth
Challenge League 2019/20
AFC Challenge Cup 2014 (kwalificatie)
EHF European Cup
Europese Challenge Tour 2009
Dutch Beer Challenge 2020
Challenge Trophy 1975
Dutch Beer Challenge 2015
Europese Challenge Tour 1992
Volvo Cross Country Challenge
Norwegian Challenge 2012
Northern Ireland Challenge