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