August 28, 2021. Saylorville Dam - Downtown Des Moines Iowa's most storied running event is back with an in-person run in 2021. We're moving to the end of summer in 2021 in order to keep the tradition of running from the Saylorville Dam to Downtown Des Moines. Registration is NOW OPEN for an in-person and unforgettable return of distance running. We’ve evolved this year's run to include a few new changes that will allow our athletes to gather in a safe way while preserving the unique and unmatched elements of this one-of-a-kind endurance challenge. Let's again set some big goals. Let's challenge our friends. Let's unite over a shared struggle. Let's daydream about finish lines in the sun. And, let's get ready to party like it's 2021. It's finally time - Let's Do This.