WrestleMania XXVI
WrestleMania XXVI was the twenty-sixth annual WrestleMania professional wrestling pay-per-view (PPV) event produced by World Wrestling Entertainment (WWE), which took place on March 28, 2010, at the University of Phoenix Stadium in the Phoenix suburb of Glendale, Arizona. This was the first WrestleMania since WrestleMania XI with a non-title match as a main event, the first WrestleMania to be held in the state of Arizona and the third to be held in an open-air venue, after WrestleMania IX and WrestleMania XXIV.
WrestleMania XXVII
WrestleMania XXVII was a joint-promotion event, with performers from both the Raw and SmackDown brands. This would be the last joint-promotion WrestleMania until WrestleMania 33 in 2017; the first brand split ended in August 2011, meaning that performers were no longer exclusive to a brand, but the brand split returned in mid-2016. The event's card consisted of eight matches, including three main matches. In the first, Edge defeated Alberto Del Rio to retain the World Heavyweight Championship in what turned out to be Edge's final televised match before his retirement one week later due to cervical spinal stenosis in his neck. The second saw The Undertaker defeating Triple H in a No Holds Barred match to extend his undefeated WrestleMania streak to 19-0. The third saw The Miz defeating John Cena to retain the WWE Championship. This is the only WrestleMania where no championships changed hands; three championships were defended at the event and all three were retained.