Ultra Circuito Nuevo Laredo

MAR
29
2026
Participate in the national selection trial for Mexico's ultrarunning team at Parque Viveros. This IAU sanctioned event features 42K, 50K, and 100K distances including individual and relay formats.
Sun 29 Mar 2026
100 kilometers 50 kilometers Marathon

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Event Overview

The Ultra Circuito Nuevo Laredo (UCNL) is a competitive long-distance running event held at Parque Viveros in Nuevo Laredo, Tamaulipas. The event functions as the national selection trial for the 50 km and 100 km distances. Results from this competition are used to determine the national teams that represent Mexico in continental and world championship events. These competitions are sanctioned by the International Association of Ultrarunners (IAU), the global governing body for ultrarunning based in Monaco.

The course is set within the residential area of Parque Viveros on Avenida Quetzalcoatl. Participants can choose from several individual distances or take part in relay categories. The relay options allow for teams ranging from a minimum of two participants to a maximum of ten participants per group.

Available Distances

  • 100K Individual
  • 100K Relevos (Relay)
  • 50K Individual
  • 50K Relevos (Relay)
  • 42K Maraton

Registration for all categories opens in mid-January and remains available until the day before the event in March. Visit the organization's website for the most recent information.

100 km
100 K Individual
100 km
100 K Relevos
50 km
50 K Relevos
50 km
50 K Individual
Marathon
42 K Maraton