She's on fire. In one year, Brenda Martinez has risen from her seventh place in the 1500m (and sixth in the 800m) finish at the 2012 U.S. Olympic Trials to a contender for a spot on the World Championship team. After the adidas Grand Prix, B-Mart has shown that she's not just in the conversation for just a roster spot, but a threat on the world stage. Dropping back down to 800m, what will Martinez surprise us with at the Prefontaine Classic? Video aired May 30, 2013 Workout: 8 x 1000m w/ 3 minutes rest between each rep Tag 400m