In 25 defenses, the WWE Championship has only changed hands six times at SummerSlam. Bret Hart won the Title by defeating The Undertaker in 1997 with Shawn Michaels as Special Referee, two years before Jesse Ventura presided over Mankind's third WWE Title victory. Brock Lesnar conquered The Rock in 2002 to win the Championship in his rookie year, a feat Alberto Del Rio also accomplished against CM Punk by using Money in the Bank in 2011. Daniel Bryan vanquished John Cena for his first WWE Title in 2013, only to be betrayed by Special Referee HHH, whom counted three for Randy Orton's own cash-in moments later.
7 Times!!! They just dont count Benoit
Considering Benoit was never WWE Champion, only a World Heavyweight Champion, I don’t think that’s why he was excluded.