![](https://image.tmdb.org/t/p/w500/4cvU9z7cmjGzwx5CHHDbe8bZ1SG.jpg)
UFC 109: Relentless
R
Feb 06, 2010
2h 43m
UFC 109: Relentless was a mixed martial arts event held by the Ultimate Fighting Championship (UFC) on February 6, 2010 at the Mandalay Bay Events Center in Las Vegas, Nevada.