Colorado is Home to One of the Wildest + Tastiest Races

Colorado is home to various races like the Bolder Boulder and Race for the Cure, but the Centennial State is also home to a much more out there, and delicious race that involves eating tacos and supports a good cause.

What is Colorado's Taco Bell 50k Ultramarathon?

The Taco Bell 50k Ultramarathon began over eight years ago on International Taco Day with the next one taking place on October 3, 2026. 

What are Colorado's Taco Bell 50k Ultramarathon's Rules?

The race has a number of very specific rules, most of which are directly related to Taco Bell. 

In addition to finishing the race in under 11 hours, participants must visit all 10 Taco Bell locations along the route and eat a food menu item from at least nine of them.

Runners must also eat at least one Chalupa Supreme or one Crunchwrap Supreme by the 4th stop, one Burrito Supreme or one Nachos Bell Grande by the 8th stop, and must keep all wrappers and receipts along the way for proof.

One off-course bathroom break will be permitted at Wash Park during the race, but no Alka-Seltzer, Pepto Bismol, Pepcid AC, or Mylanta will be allowed.

In addition, especially ambitious runners are encouraged to participate in the Baja Blast Challenge in which they must consume two liters of the drink without vomiting, as well as the Diablo Challenge in which runners must apply the hot sauce to their food and consume a shot of it before reaching the finish line.

Colorado's Taco Bell 50k Ultramarathon Benefits Charity

This outlandish race isn’t just for fun, as all proceeds benefit disabled runners in the Denver area in partnership with the Achilles International Denver Chapter.

Read More: Burro Racing is an Annual Festivity in One Colorado Town

Learn more and, if you dare, sign up to participate here.