A-VCS-tec Challenge happened in 2006.
Climate Challenge happened in 2006.
Supercar Challenge happened in 2009.
UEFA Challenge happened in 2001.
Winter Challenge happened in 1991.
AFL Challenge happened in 2009.
Rugby Challenge happened in 360.
Lotus Challenge happened in 2001.
GP Challenge happened in 2002.
Challenge of Barletta happened in 1503.
Challenge of the Dragon happened in 1990.
Aztec Challenge happened in 1982.
Brain Challenge happened in 2007.