K1 HEROs 6

Heros 6 was a mixed martial arts event held by the Heros promotion on August 5 2006 at the Ariake Coliseum in Tokyo Japan The quarterfinals of the 2006 Lightweight Grand Prix was held at the event The opening round had took place at the previous event The 2006 Light Heavyweight Grand Prix also opened at the quarterfinal stage at Heros 6