The Mass-Gathering Medicine Event and Patient Registry provides an effective tool for recording and reporting both event and patient-related variables in the context of mass-gathering events. Standardizing data collection will serve researchers and policy makers well. The structure of the database permits numerous queries to be written to generate standardized reports of similar and dissimilar events, which supports hypothesis generation and the development of theoretical foundations in mass-gathering medicine.

A coordinated on-site medical team covering the entire event site and race route was deployed to reduce the severity of illness and injury at a long-distance running event.

Obstacle adventure courses (OAC) are increasing in popularity. Although injuries are not uncommon, there is scant medical literature documenting the morbidity and mortality associated with these events. This manuscript describes a case series. Event demographics, medical coverage, and injuries/illnesses documented during four OAC events in British Columbia, Canada, are discussed - Tough Mudder™ (2012 and 2013) and Warrior Dash© (2011 and 2012). The patient presentation rate across all events ranged from 26.53 to 37.40 per 1,000 participants. Ambulance transfer rates were low (range = 0 to 5 per event day, 0% to 1.1% of patients seen). Although some illness presentations and injuries required a higher level of care, the majority of medical issues were related to musculoskeletal injuries of the lower limbs. Advanced knowledge about risks and patient presentations associated with participation in OAC may influence on-site staffing, deployment patterns, rescue equipment, and transfer to hospital planning for diagnostic imaging and definitive treatment.

The Ride to Conquer Cancer Series has shown that medical coverage at multi-day, cross-national cycling events must be planned carefully to face a unique set of circumstances, including legislative issues, long-distance communication capabilities, and highly mobile participants. This combination of factors leads to potentially higher PPRs than have been reported for noncycling events. This study also illuminates the additional workload "self-treatment" visits place on the medical team.