TOKYO -- Sifan Hassan pointed to her left shoulder. "I have pain here," she said. Then, her right leg. "Pain here." Then, she dropped her hands to her sides in exhaustion, too tired to explain it ...

The women’s 5000 meters is one of track and field’s premier long-distance events, testing endurance, pacing and race awareness over 12.5 laps of the track. It requires athletes to sustain a high level ...