WEC 28: Faber vs. Farrar was the fourth mixed martial arts event held by the World Extreme Cagefighting under Zuffa management.

The event was held on June 3, 2007.

The main event was a Featherweight title defense by WEC Featherweight champion, Urijah Faber.

The following is the reported payout to the fighters as reported to the Nevada State Athletic Commission.

It does not include sponsor money or "locker room" bonuses often given by the WEC.