Jeptoo Wins London Marathon Amid High Security Priscah Jeptoo won the women's London Marathon amid strengthened security in the first major race since the twin bombings at the Boston race. The London Olympics silver medalist, who like most competitors wore a black ribbon, crossed the line in front of Buckingham Palace in 2 hours 20 minutes, 15 seconds. The Kenyan clocked the fastest time this year to finish ahead of compatriot Edna Kiplagat.