Simplify the following text for a Grade 11 native English-speaking person.
Original: One month prior to the show , at Extreme Rules , Punk invoked the guaranteed title match he earned by winning the Money in the Bank ladder match against Hardy ; he defeated him , and won the World Heavyweight title .
Simplified: One month before the show , at Extreme Rules , Punk used his guaranteed title match he earned by winning the Money in the Bank ladder match against Hardy ; he beat him , and won the World Heavyweight title .