WHOBO 4 was a Super Smash Bros. Brawl national tournament held by Xyro on August 4-5, 2012. It is the 4th event in the WHOBO series. WHOBO 4 was the first American national to feature Meta Knight banned from both singles and doubles. Xyro intended for WHOBO 4 to be the last tournament in the WHOBO series and the last Brawl tournament he will ever host. Due to encouragement however, Xyro continued to host with two HOBO tournaments, WHOBO 5, and WHOBO MLG.
WHOBO 4 used the Unity Ruleset Version 2.1
General Gameplay Rules
Mid+low tier singles
Low+mid tier doubles