On Sunday, September 15, Marie-Ange Brumelot had just crested a hill in Central Park on her third and final lap of an 18-mile race hosted by the New York Road Runners. At that point, she spotted her husband, Luciano Medina, ahead of her. “I didn’t realize he was in the lead,” Brumelot, 26 of the Bronx, told Runner’s World. “There were nearly 5,000 runners participating, running anything from six minutes to 14 minutes per mile, so we were lapping people. Of course I wanted to catch him.” Brumelot, who is running the Chicago Marathon on October 13, planned a hard...