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