This event is endorsed by the Mexico City Sports Institute, the Mexican Federation of Athletics Associations (FMAA), the International Association of Athletics Federations (IAAF) and the Association of International Marathons and Distance Running (AIMS). Ina race with technical difficulty. Not suitable for personal bests. It is recommended to arrive at least two weeks in advance to acclimatize to the altitude if you are not used to it. It has two important uphill sections and the last 4 kilometers are on cobblestones which makes stability difficult with tired legs. The views are beautiful and it goes through important monuments of the city.