World Series of Fighting 1: Arlovski vs. Cole was the inaugural event of the promotion held on November 3, 2012 (2012-11-03) at the Planet Hollywood Resort and Casino in Las Vegas, United States.

The main card began at 10:30 p.m. Eastern Time and the preliminary card was streamed on Sherdog.com.

[2] The event underwent changes, as Gesias Cavalcante was originally scheduled to face John Gunderson, but instead faced TJ O'Brien.

Also, a bout between Waylon Lowe and Fabio Mello was scrapped for unknown reasons.

[3] Kickboxing star Tyrone Spong made his MMA debut at this event.