By Greg Bishop The 22-year-old dropped her 400-meter hurdles time to a blazing 50.68 on Friday night at the world championships, a feat so remarkable that only track legends can put it into perspective. EUGENE, Ore. — For years, Edwin Moses collected so many 400-meter hurdle victories that he turned the event into essentially two races: the rest of the field against each other, for second place … and Moses vs. himself. His longest win-streak—122-consecutive races, 107-straight finals—will never be approached, let alone broken. But one man, an elite track coach who’s still coaching, wanted more…
