Mixed Martial Arts is as unpredictable as athletic endeavors come based on the nature of fighting. One perfectly-placed punch or a split-second error in judgment on the ground can lead to a loss, making the sport extremely difficult to bet on. For example, take a look at this week’s lineup for UFC Fight Night 29 where there are definitely a few underdogs who could end up exiting their efforts with a hand raised. (Photos by USA Today Sports Images)