Undertaker's first pay per view outside of WrestleMania since Bragging Rights 2010.
Stephen Amell competed in his only WWE Pay Per View match in a special celebrity appearance when he fought with Neville against Stardust and King Barrett in a tag team match.
SummerSlam pay-per-view was four hours long, making it the only event other than WrestleMaina to share that length in the company's illustrious history.
Stephen Amell from Arrow was a VIP audience member but Stardust (Cody Rhodes) hit him in the head so Stephen jumped into the ring and beat up Stardust before security split it up and Stephen got a match at SummerSlam
Becky Lynch competed in her first WWE Pay Per View match when she fought with Charlotte and Paige against Team Bella and Team B.A.D in a divas three team elimination match.