Arnold Allen is a -120 favorite over Melquizael Costa in tonights UFC main event. In the other featured match, Daniiel Santos is -170 over Doo Ho Choi. Another MMA organization called MMA is running a simultaneous event with more recognizable names, albeit no longer of top-level UFC caliber. In the main event, Ronda Rousey is a -650 favorite over Gina Carano. Others on the card include Nate Diaz, Mike Perry, Junior dos Santos, and Francis Ngannou.
Source: Las Vegas News