Fight night 4

 UFN 4:''' was the 4th mixed martial arts event held by the Ultimate Fighting Championship under the fight night name. The event will take place on January 30, 2012 from the Red Rock Casino resort & Spa, Paradise, Nevada, USA.

Event
This event will feature Eight sanctioned mixed martial arts bouts. It is the 3rd fight night show and will feature eight main card bouts.

Fight Card

 * Note 1: This is a number one contenders match for the Heavyweight title
 * Note 2: This is a number one contenders match for the Light Heavyweight title

Bonus awards

 * Fight of the Night:'''
 * Knockout of the Night:'''