The Filthy 50

Race facts

• The course covers 80 km.
• It takes place on a Saturday, October 10, 2026 — autumn in this part of the world.
• The closest comparable gravel event is Goliath Gravel Grinder in Decorah, 49 km away, on October 10, 2026.
• 10 of the 12 most similar events take place in the same month.