The path to glory, however, was marred by a dramatic fallout with his sponsor, Asics. The relationship imploded after Kerley breached his contract by wearing Nike spikes before a crucial race.

Update March 2025: We’ve replaced seven spikes with updated models from Nike, Saucony, Asics, New Balance, Puma, and Hoka, and removed two spikes from the list. Here are our top picks from ...