The NWA/WCW House Show is a House show produced by the National Wrestling Alliance and World Championship Wrestling on July 12, 1989 at the SIU Arena in Carbondale, Illinois. It also served as the 20th night of the 1989 Great American Bash tour.
- (c) refers to the champion(s) heading into the match.
- The Dynamic Dudes (Shane Douglas and Johnny Ace) defeated The New Zealand Militia (Jack Victory and Rip Morgan)
- The Skyscrapers (Sid Vicious and Dan Spivey) defeated Johnny Rich & Davey Rich
- Mike Rotunda defeated Dick Murdoch
- The Great Muta defeated Eddie Gilbert by countout in a Dragon Shi Match
- Rick Steiner won a Two Ring Battle Royal
- Rick Steiner defeated Kevin Sullivan
- The Road Warriors (Road Warrior Animal and Road Warrior Hawk) defeated Norman the Lunatic & Fatu
- Sting defeated Terry Funk by DQ.
- The Fabulous Freebirds (Terry Gordy, Michael P.S. Hayes and Jimmy Garvin) defeated Steve Williams & The Midnight Express (Bobby Eaton and Stan Lane)
|WCW House Shows 1989|
GAB Night 10 • GAB Night 11 • GAB Night 12 • GAB Night 14 • GAB Night 15 • GAB Night 16 • GAB Night 17 • GAB Night 18 • GAB Night 19 • GAB Night 20 • GAB Night 21 • GAB Night 22 • GAB Night 23 • GAB Night 24 • GAB Night 25 • GAB Night 26 • GAB Night 28 • GAB Night 29 • GAB Night 31 • GAB Night 32 • GAB Night 33 • GAB Night 34 • GAB Night 35