World Series of Fighting 30: Branch vs. StarksWorld Series of Fighting 30: Branch vs. Starks was a mixed martial arts event held on at the Hard Rock Hotel and Casino in Las Vegas, Nevada, United States.BackgroundThe event was headlined by a WSOF Middleweight Championship fight between champion David Branch and Clifford Starks. The co-headliner was a fight between Jon Fitch and João Zeferino for the vacant WSOF Welterweight Championship. After Rousimar Palhares was stripped of the title for holding the submission too long in the fight against Jake Shields, Fitch and Shields were originally expected to fight for the vacant title, but Shields pulled out of the fight, citing a disagreement over his contract.Results