Casey Olson (MMA) has played in fantasy football and baseball leagues since the late 90’s. Then came mixed martial arts. With the continuing rise of popularity with the sport, he can say he’s been a fan since UFC 1. As the sport grew to what it is today, he began posting very successful predictions merely as a hobby. Along with picking winners, Casey began playing on smaller MMA DFS sites before DraftKings began offering the sport. He won large tournaments, and folks on social media quickly took notice. With the growth of players and the tournaments getting bigger and bigger, Casey looks forward to being a part of the SI Fantasy team and providing MMA data and input. He also participates in MLB and NFL DFS contests and finished 8th in the 2015 NFL Super Contest in Las Vegas.