50k Mashup Slam

The 50K Mashup Slam is a series of five 50K trail races held throughout the Midwest, designed to celebrate the often-overlooked distance in ultrarunning. Participants who complete all five races within the same calendar year will receive a finisher buckle. The series begins with the Frozen Gnome 50K in January and concludes with the Miner 49er 50K in November.

Awards are given to the top three finishers based on cumulative times. Registration for the series is required by January 10, 2025, and includes special pricing codes for individual race entries. Visit the organization's website for the most recent information.