The document describes a corral management system for organizing race participants at the starting line. The system allows event directors to manually or automatically group participants into corrals based on estimated finish times, registration date, or number of participants. It provides tools for setting up corrals with details like name, start time, and maximum capacity. Participants can be assigned corrals during registration based on their estimated finish time or manually via CSV import. The system also includes tools to estimate total corral size needs and recommend corral time limits.