Taco lovers and ultrarunners alike, brace yourselves: America is making a bold statement, and it involves running—31 miles fueled by fast food. This October 5, the eighth annual International Taco Bell 50K Ultramarathon kicks off, drawing nearly 1,200 participants ready to embrace the ultimate test of endurance and appetite. This is not your typical marathon; it’s a wild adventure that challenges the body—and maybe even the stomach—like few others can.

Set against the backdrop of Denver, this race is unapologetically outrageous. Participants must not only navigate a grueling course but also stop at nearly every Taco Bell along the way—aligning their love for tacos with their athletic prowess. It’s about more than just running; it’s about survivor mentality. As one participant aptly describes, there are no traditional winners here, only those who emerge as “survivors.”

And let’s be clear: competitors must order real food items—no liquid shortcuts. By their fourth stop, they need to down a Chalupa Supreme or Crunchwrap Supreme; by the eighth, it’s a Burrito Supreme or Nachos Bellgrande—each a caloric monstrosity loaded with flavor and potential regret. Every runner has 11 hours to complete the challenge, but keep your Pepto-Bismol on standby; while throwing up isn’t officially banned, the true test of grit lies in keeping it down.

Nathan Giusti, a veteran of ultramarathons, emphasizes the unconventional charm of the race. He signed up for the Taco Bell 50K after recognizing the blend of humor and challenge it presents. “I’m great at eating,” he quips, aptly merging his skills of running and appetite in what he describes as glorious silliness.

The race’s origins are as entertaining as its concept. It all began when Dan Zolnikov, while training for a 50-mile ultramarathon, made a pit stop at Taco Bell. The idea sparked a jovial discussion among friends about dining and running—a lighthearted thought that quickly evolved into the race we know today. With rules inspired by legendary ultramarathons, this quirky challenge has since transformed into a phenomenon that draws thousands.

Once an obscure event with merely seven participants in its inaugural year, the Taco Bell 50K has exploded in popularity, thanks in part to social media hype. Viral TikTok posts have sent participation rates soaring, and even professional athletes are joining in the fun, with course records set and shattered over the years.

Training for this unique event is as unconventional as the race itself. Vivi Armacost, another rising star in the Taco Bell 50K, has been honing her skills simply by jogging between Taco Bells in Manhattan. While traditional ultramarathon training focuses on nutrient-rich foods, participants are learning to adapt their expectations when faced with running with a full stomach.

The Taco Bell 50K isn’t just a test of physical endurance; it’s a psychological challenge. Runners must remain mentally tough as they grapple with the realities of combining extreme exercise with fast food consumption. The event boasts a dropout rate that rivals even the toughest races, demanding grit, endurance, and, let’s face it, a strong stomach.

For those seeking added excitement, the event offers optional challenges, like the “Diablo Challenge,” requiring competitors to slather their meals with the chain’s hottest sauce—or the infamous “Baja Blast Challenge,” where chugging two liters of soda can throw even the most seasoned racer for a loop. The stakes are high, and the only guarantee is unpredictable fun.

As the race beckons, Giusti encapsulates the essence of the event. “I’m really excited to be surrounded by people who are my same type of insane,” he remarks, embracing the quirky camaraderie that defines this outrageous celebration of endurance and indulgence. Here’s to the Taco Bell 50K—where the spirit of competition meets the joy of a taco feast on the move!