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