15-year-old runs 2:40:03, finishes sixth at Twin Cities Marathon

Tierney Wolfgram nabbed a sixth-place finish and an international age group world record with her 2:40:03 marathon debut in Minneapolis-St. Paul

One lucky winner at this race gets a personal, VIP porta-potty

The ultimate incentive: One lucky entrant to the Twin Cities Marathon will win exclusive access to a porta-potty reserved just for them.