WrestleMania XXV
The Colons (Carlito & Primo) defeated John Morrison & The Miz to unify the World Tag Team Championships with the WWE Tag Team Championships. Rey Mysterio won the WWE Intercontinental Championship in a 21-second-long match from defending Champion HBL, who promptly retired after losing.
John Cena defeated Edge and the Big Show in a triple threat match for the World Heavyweight Championship. Edge was the defending Champion and he lost the belt to Cena. Triple H successfully defended his WWE Championship against Randy Orton.
A former WWE writer just went after JBL for his comments HERE
WrestleMania 26
ShoMiz (Big Show & The Miz) defeated John Morrison & R-Truth to retain the Unified WWE Tag Team Championships. Chris Jericho successfully retained the World Heavyweight Championship in a match against Edge. John Cena won the WWE Championship after defeating Batista
WrestleMania XXVII
Sheamus, Edge and The Miz all retained their respective Championships at this event. Sheamus retained the US Championship due to the match resulting in a no-contest, Edge defeated Alberto Del Rio to retain the WHC, and The Miz defeated John Cena (albeit following shenanigans courtesy of the Rock,) to retain the WWE Championship