Strikeforce: Triple Threat was the fourth mixed martial arts event promoted by Strikeforce. The event took place at the HP Pavilion at San Jose in San Jose, California on December 8, 2006. The main card featured the Strikeforce debut of Gina Carano.

Strikeforce: Melendez vs. Thomson was a mixed martial arts event promoted by Strikeforce. The event took place at the HP Pavilion at San Jose in San Jose, California on Friday, June 27, 2008. The main event was the long awaited match between lightweights Gilbert Melendez and Josh Thomson for the Strikeforce Lightweight title.

The inaugural event was held on February 10, 2007. The event was held by Strikeforce and took place at the San Jose Civic Auditorium in San Jose, California.