The 8th edition of the International Taco Bell 50k Ultramarathon took place in Denver on Saturday, Oct. 4, 2025. This year, organizers boasted of a record number of participants.
Race rules dictate that runners must be present at all 10 Taco Bell stops along the course, eat a menu item from at least 9 of the 10 Taco Bell stops. If you puke, you’re disqualified. No on-course Pepto, Alka Seltzer, Pepcid A/C, Mylanta, etc. is allowed.
Competitors stretch before the 8th edition of the International Taco Bell 50k Ultramarathon Saturday, Oct. 4, 2025 in Denver. (Photo by Daniel Brenner/Special to The Denver Post)
Race director and co-founder Jason Romero uses a microphone to make an announcement during the 8th edition of the International Taco Bell 50k Ultramarathon Saturday, Oct. 4, 2025 in Denver. (Photo by Daniel Brenner/Special to The Denver Post)
A participant shows offer her custom painted nails during the 8th edition of the International Taco Bell 50k Ultramarathon Saturday, Oct. 4, 2025, in Denver. (Photo by Daniel Brenner/Special to The Denver Post)
A competitor eats her first meal during the 8th edition of the International Taco Bell 50k Ultramarathon Saturday, Oct. 4, 2025, in Denver. (Photo by Daniel Brenner/Special to The Denver Post)
Competitors load up for the 8th edition of the International Taco Bell 50k Ultramarathon Saturday, Oct. 4, 2025, in Denver. (Photo by Daniel Brenner/Special to The Denver Post)
Competitors prepare for the 8th edition of the International Taco Bell 50k Ultramarathon Saturday, Oct. 4, 2025, in Denver. (Photo by Daniel Brenner/Special to The Denver Post)
Competitors cheer after the National Anthem before the 8th edition of the International Taco Bell 50k Ultramarathon Saturday, Oct. 4, 2025, in Denver. (Photo by Daniel Brenner/Special to The Denver Post)
Competitors run in the 8th edition of the International Taco Bell 50k Ultramarathon Saturday, Oct. 4, 2025 in Denver. (Photo by Daniel Brenner/Special to The Denver Post)
Competitors run in the 8th edition of the International Taco Bell 50k Ultramarathon Saturday, Oct. 4, 2025, in Denver. (Photo by Daniel Brenner/Special to The Denver Post)
LEFT: A dog in a taco costume attends the 8th edition of the International Taco Bell 50k Ultramarathon Saturday, Oct. 4, 2025, in Denver. RIGHT: Competitors stop at a Taco Bell location to eat a menu item with Diablo hot sauce. (Photos by Daniel Brenner/Special to The Denver Post)
Competitors stop at a Taco Bell location to eat a menu item during the 8th edition of the International Taco Bell 50k Ultramarathon Saturday, Oct. 4, 2025, in Denver. (Photo by Daniel Brenner/Special to The Denver Post)
Competitors refuel at a Taco Bell location, including refilling a container with Mountain Dew Baja Blast, left, during the 8th edition of the International Taco Bell 50k Ultramarathon Saturday, Oct. 4, 2025, in Denver. (Photo by Daniel Brenner/Special to The Denver Post)
Competitors stop at a Taco Bell location to eat a menu item during the 8th edition of the International Taco Bell 50k Ultramarathon Saturday, Oct. 4, 2025, in Denver. (Photo by Daniel Brenner/Special to The Denver Post)
Competitors stop at a Taco Bell location to eat a menu item during the 8th edition of the International Taco Bell 50k Ultramarathon Saturday, Oct. 4, 2025, in Denver. (Photo by Daniel Brenner/Special to The Denver Post)
Competitors stop at a Taco Bell location to eat a menu item during the 8th edition of the International Taco Bell 50k Ultramarathon Saturday, Oct. 4, 2025, in Denver. (Photo by Daniel Brenner/Special to The Denver Post)
The first there competitors to cross the finish line pose for a picture during the 8th edition of the International Taco Bell 50k Ultramarathon Saturday, Oct. 4, 2025, in Denver. (Photo by Daniel Brenner/Special to The Denver Post)
A competitor stops at a Taco Bell location to eat a menu item during the 8th edition of the International Taco Bell 50k Ultramarathon Saturday, Oct. 4, 2025, in Denver. (Photo by Daniel Brenner/Special to The Denver Post)
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