Few but the most obsessive track historians know it, but Mexico tried using a pair of Tarahumara runners in the Olympic marathon in both the 1928 Amsterdam games and the 1968 Mexico City games. Both times, the Tarahumara finished out of the medals. The excuse those times was that 26.2 miles was too short; the dinky little marathon was over before the Tarahumara got a chance to shift into high gear.