Strikeforce: Diaz vs. Cyborg, was a mixed martial arts event that was held by Strikeforce on January 29, 2011 at the HP Pavilion in San Jose, California, United States.

Strikeforce: Carano vs. Cyborg was a mixed martial arts event held by Strikeforce. It was held in San Jose, California on August 15, 2009. The event aired live on the Showtime cable network and marked the first time two women headlined an MMA event in history.

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.