From Wikipedia's Galen Rupp page:
Then he finished 3rd in the 5000 and 4th in the 3000 at the 2007 NCAA Men's Indoor Track and Field Championship. He began his outdoor season by running a 28:35 10,000 meters at Stanford.[6] During the race he caused some controversy by continually slowing down to wait for another athlete.
What is the story behind this?