Trosa Ultra Backyard

The Trosa Ultra Backyard (TUB) 2026 is a premier endurance event held in the scenic coastal town of Trosa, Sweden. Scheduled for Saturday, May 2, 2026, at 10:00 AM, the race starts and finishes at the Västra Hamnplan harbor. Known for its picturesque route through the town's historic center, the event follows the traditional "backyard" format where runners must complete a 6.7-kilometer loop every hour. The race continues until only one person remains to finish a final solo lap, earning the title of "Last Person Standing."

The 2026 edition features a significant prize pool and a strong commitment to sustainability. Participants in the main race receive a reusable silicone mug to eliminate single-use plastic on the course. While the main ultra event is currently sold out, a secondary event called the Mini-TUB is available for children born in 2016 or later. This youth race features 800-meter laps and starts at 12:15 PM, ensuring the event remains a multi-generational community festival.

Trosa is a historic town in Södermanland with a population of approximately 7,300 residents. It is often affectionately called "The End of the World" due to its tranquil location on the coast. The town is characterized by its colorful wooden houses along the Trosa River and a high quality of life, supported by a median household income of roughly 35,000 SEK per month. The community is highly active, with a culture that balances quiet seaside living with a robust calendar of outdoor sporting events.

The local culture is defined by strong partnerships between the race organizers and town staples like the Trosa Stadshotell and ICA Kvantum Trossen, who provide meals and energy supplies for the runners. During the race, the harbor area becomes a social hub where spectators gather to watch the livestream and support athletes through the night. The event’s "Selfie Corner" and post-race access to local saunas reflect Trosa’s welcoming, hospitality-focused identity, making the TUB much more than just an athletic competition—it is a cornerstone of the town's spring social season.

The TUB provides a substantial social and economic boost to the region, drawing runners from across Sweden and beyond. Financial incentives are provided by local sponsors like BCT AB, offering a total of 15,000 SEK in prize money distributed among the top three male and female finishers, with a special bonus for the overall winner. The race also includes a team competition to encourage local clubs to participate together, with top-performing clubs receiving discounts for the following year.

For the participants, the experience is designed to be as supportive as possible. As the night grows cold, a communal fire is lit to provide warmth and moral support. The social impact extends to the younger generation through the Mini-TUB, where kids receive goodie bags and wooden medals, fostering a lifelong interest in fitness and community engagement. On May 2nd, the harbor will once again serve as the heart of Trosa, celebrating the grit of the runners and the unique charm of this coastal town.