Hulk Hogan
Undertaker is still undefeated @ Wrestlemania with a 16-0 record, but Hulk Hogan has been undefeated @ Summerslam with a record of 6-0
In 1988 @ the very 1st Summerslam, The Mega Powers Hulk Hogan & then WWE Heavyweight Champion "The Macho Man" Randy Savage w/the late Miss Elizabeth defeated "The Million Dollar Man" Ted DiBiase and the late Andre The Giant
In 1989, Hulk Hogan (who was the WWE Heavyweight Champion during that time) teamed up with Brutus “The Barber” Beefcake and defeated “The Macho Man” Randy Savage & Zeus
In 1990, Hulk Hogan defeated the late John Tenta better known as Earthquake via countout
In 1991, Hulk Hogan (who was the WWE Heavyweight Champion during that time) teamed up with the Ultimate Warrior as they defeated Sgt. Slaughter, Col. Mustafa & Gen. Adnan in a 2 on 3 Handicap Match
However, 14 years later, Hulk Hogan returned to Summerslam and he defeated HBK Shawn Michaels in a Legend vs. Icon Match
and in 2006 Hogan would return one last time, as he defeated Randy Orton in a Legend vs. Legend Killer Match
and that's your look @ a man who is Undefeated @ Summerslam
The Immortal Hulk Hogan
credit: wwe.com