Lolo Jones and Lauryn Williams were Olympic track stars who re-emerged as Olympic bobsledders in 2014. In the larger pool of Olympic athletes, many of whom have been obsessively honing their skills since early childhood, they are outliers. According to Olympic historian Bill Mallon, there are only 143 athletes who have competed in both the summer and winter Olympics. Of those, 64, or 45%, competed in bobsled in the Winter Games, easily the most of any winter sport. Recent Winter Games have been successful for the U.S. teams, which took home four bobsled medals in 2014, more than any other country.

Source: Wall Street Journal February 15, 2018 11:37 UTC