The thinking used to be that middle-distance runners should be as light as possible. But “super spikes” might be giving an edge to bigger runners—like Americans.🔗: https://t.co/TdApgBzcQ2 https://t.co/QzGbyd1DRu ...

The thinking used to be that middle-distance runners should be as light as possible. But "super spikes" might be giving an edge to bigger runners—like Americans.🔗: https://t.co/QJ0Q2NkTUm https://t.co/brJFYAFP4N ...