In a competitive professional field at Sir Walter Miler, 19-year-old Mikey Brannigan ran his way to his first sub-four-minute mile. Brannigan, who trains with the New York Athletic Club, finished seventh in 3:57.58, which converts to a 3:40.05 1500m. 

The photo finish for third place in the U.S. Olympic Trials 1500m final is a great representation of the tenacity required to make Team USA.

The stage is set for the hottest American runners (who aren't Rio-bound) to go head-to-head at this Friday's Sir Walter Miler event. As the name suggests, this is a "miler meet" with two professional events: the men's and women's mile. Sixteen men and 15 women will take the track at Meredith College in Raleigh, North Carolina, to race for bragging rights under the lights.

Prep sensation Drew Hunter will make his professional debut at this year's Sir Walter Miler amid a stout field of elite athletes that competed at the U.S. Olympic Trials.