Get ready to strip down for a cause at Cupid's Undie Run - Saint Petersburg, an exhilarating mile(ish) fun run hitting the streets of St. Petersburg, FL, on February 21, 2026. This unique event isn't just about breaking a sweat; it's a vibrant "pantless party with a purpose" dedicated to raising crucial funds and awareness for the Children's Tumor Foundation and its mission to end neurofibromatosis (NF). Historically, the course has taken participants through downtown St. Petersburg, past landmarks like the Dalí Museum, suggesting a flat, urban route.

The festivities kick off with mingling, music, and drinks at Golden Isles Brewing Co. located at 3000 Dr. M.L.K. Jr. St. N, where the event also concludes with an epic dance party. Runners trade their typical gear for their boldest undies or creative costumes, embracing the "chilly cheeks" for a heartfelt cause. Typical race day conditions in late February in St. Petersburg offer pleasant weather, with highs around 73F and lows near 60F, and only a 6% chance of precipitation, ensuring a comfortable—albeit unconventional—running experience.

What truly sets Cupid's Undie Run apart is its lively, non-competitive atmosphere; it's more of a joyful parade and dance party than a traditional race. Since its inception in 2010, this national phenomenon has raised over $25.7 million for NF research, making it a significant contributor to finding treatments and a cure for this genetic disorder. Join thousands of "undie runners" for an unforgettable day of fun, community, and impactful philanthropy.