Strikeforce Challengers: Johnson vs. Mahe was a mixed martial arts event held by the Strikeforce. The seventh Challengers episode took place on March 26, 2010, at the Save Mart Center in Fresno, California.[2] The event drew an estimated 316,000 viewers on Showtime.

Strikeforce Challengers: del Rosario vs. Mahe was a mixed martial arts event held by the Strikeforce. The ninth Challengers episode took place on July 23, 2010, at the Comcast Arena at Everett in Everett, Washington.