Lost Our Marbles

Lost Our Marbles is an indoor ultra-marathon held at 1717 Elphinstone Street in Regina, Saskatchewan, Canada. In its second year, it offers three challenge formats: 3-, 6-, and 12-hour events. Runners accumulate distance by completing laps on an indoor track; each lap earns a marble placed into a tin, and total distance is determined by the marbles counted at the end. The event is self-supported with no aid stations, but fountains and accessible washrooms are available; a nearby food court serves as the crew area. At the end, marbles are dumped into a bin for a close-guess prize, with proceeds donated to CMHA Regina. Visit the organization's website for the most recent information.