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Ruiz was working as a secretary at a commodities trading firm in Manhattan when she stunned the running world by being the first woman to cross the finish line in Boston in 2 hours, 31 minutes and 56 seconds. It would have been the third-fastest time ever recorded by a woman in a marathon. But suspicions about her victory arose immediately. Spotters had not seen her at checkpoints along the 26-mile course, and after the race, she told a television interviewer that she had run only one other marathon, the 1979 New York City Marathon, and that she had finished that race in 2:56:33.