WCW Halloween Havoc '90 took place on October 27, 1990 from The UIC Pavilion in Chicago, Illinois. The main event was Sting versus Sid Vicious in defense of the NWA World Heavyweight Championship. Lex Luger defended the NWA US Championship against Stan Hansen while the NWA World Tag Team Champions, Doom, defended against Ric Flair and Arn Anderson. Other matches included Junkyard Dog vs Moondog Rex, The Steiner Brothers vs The Nasty Boys, The Freebirds vs The Renegade Warriors, and 3 other matches.

WCW Halloween Havoc '90

January 13, 1993 in Milwaukee. This was the last Clash for announcer Jim Ross who shortly after this event was fired by WCW and joined the WWF. Originally, it was scheduled to be Sting, Dustin Rhodes, Ron Simmons, and Van Hammer against Big Van Vader, Barry Windham, The Barbarian, and Rick Rude; due to injuries, Hammer and Rude dropped out and Orndorff took Rude's place. Earlier on the show, Vader's team got rid of Barbarian, and Vader injured Simmons. Cactus Jack came in during the match, siding with Sting and Rhodes, thus turning face. Johnny B. Badd replaced Erik Watts, where the storyline was that he was suspended from WCW, due to an altercation with Arn Anderson. Tony Atlas replaced Hammer in the arm-wrestling contest.