How an ethnic minority that makes up 0.06% of the world’s population came to dominate most of its long-distance races.
Two hours, 31 minutes, and 51 seconds after the Boston marathon began on Monday, its male and female champions had already finished. A few minutes later, race-watchers noticed something. The first, second, and third-place men were all Kenyan. So were the first, second, and third-place women. It was yet another amazing showing for Kenyan runners, and yet another reason to ask: how?