Strikeforce: Four Men Enter, One Man Survives

Strikeforce: Four Men Enter, One Man Survives it contained the first MMA tournament sanctioned by the California State Athletic Commission and 2) Strikeforce's heavyweight champion was determined during the event in a non-tournament fight.

Tournament Rules

The tournament was a four-man, single-elimination tournament. Each bracket consisted of two five-minute rounds, with a third round being fought in the case of a tie.