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