Brock Lesnar vs. Roman Reigns SummerSlam 2018 match is now the shortest SummerSlam main event ever with 6 minutes & 10 seconds.
The previous record was held by The Undertaker vs. Fake Undertaker from SummerSlam 1994 with 8 minutes & 57 seconds.
Note: It should be noted that impromptu Money In The Bank cash-in main events don’t count.