Simplify the following text for a Grade 10 native English-speaking person.
Original: Among other accolades , Rude was a four-time world champion ( three-time WCW International World Heavyweight Champion , and one-time WCWA World Heavyweight Champion ) , one-time WWF Intercontinental Champion , and one-time WCW United States Champion .
Simplified: In his wrestling career he was a one-time WWF Intercontinental Champion and won numerous championships in WCW and ECW .