Callie Vinson is taking on the Maricopa Loop trail FKT, which is a 240 mile multi-use trail that connects the major regional and municipal parks via trails, forest roads and canal paths in and around the Phoenix metropolitan area.
In order to get the record, Callie will need to cover the full distance in under 4 days 13 hours & 47 minutes.
Callie's FKT attempt kick's off tomorrow morning (Wednesday, November 22nd at 8AM.