Halfway through the Tiberias Marathon in Tiberias, Israel, on January 4, Bracha “Beatie” Deutsch thought victory was in the bag. But then she saw another female runner, Israeli marathon record holder Elena Dolinin, far up ahead, and her heart sank. “She is a 2:35 marathoner, and I didn’t think she would slow down,” Deutsch told Runner’s World. “I was disappointed, because my family was all there watching.” Cheering on the sidelines were the 29-year-old’s husband and their five children. If being a mother didn’t make the runner stand out from the rest of the elite field, her running attire—a long-sleeved...