The majority of matches have been contested for a top-tier championship with the WWE Championship (once as the WWE World Heavyweight Championship) being contested for the most in eight matches. The World Heavyweight Championship has the second-most at seven matches, while the ECW World Championship, WWE Tag Team Championship, SmackDown Tag Team Championship, Intercontinental Championship, and Raw Women's Championship being contested in one match each. Six matches (two in 2008 and one in 2011, 2013, 2018, and 2020) awarded the winners the number-one contendership for the WWE Championship, World Heavyweight Championship, WWE Universal Championship, and Raw Women's Championship, respectively, at those years' WrestleMania; in 2021, SmackDown's Chamber match awarded the winner the number-one contendership for the Universal Championship that same night, which happened immediately after the Chamber match itself. The Elimination Chamber match has been contested only in indoor arenas in the United States and once in Puerto Rico. From 2008 to 2014, the match had been featured in February pay-per-view events only. An Elimination Chamber pay-per-view event took place on May 31, 2015 exclusively on the WWE Network. The Elimination Chamber in February 2018 featured the first seven-man Elimination Chamber match as well as the first Elimination Chamber match for women with the Raw Women's Championship contested. The Elimination Chamber in February 2019 featured a tag team Elimination Chamber match, the second overall tag team chamber match, but this time for women to determine the inaugural holders of the WWE Women's Tag Team Championship.