NEW YORK - Fiona O'Keeffe is leaning on her coaches and support crew after an astonishing win at the U.S. Olympic marathon trials sees her leading the American charge for the podium in Paris.

The 25-year-old was the youngest-ever competitor to win the U.S. trials as she broke the tape in an event record time of two hours 22 minutes and 10 seconds, stunning pundits and armchair experts alike in her first career marathon.