Background One of the primary roles of Fédération Internationale de Natation (FINA) is to promote athlete health. The planning and delivery of major international event medical services is carried out in collaboration with the Local Organizing Committee Medical Commission (LOCMC). Aspetar Orthopaedic and Sports Medicine Hospital provided the medical services to the 12th FINA World Swimming Championships (25 m) creating a unique opportunity for collaboration with FINA.

Aim The purpose of this paper is to review the planning and delivery of medical services and athlete health promotion projects during the 12th FINA World Swimming Championships (25 m) to facilitate the planning of future sporting events of this size and scope.

Methods The 12th FINA World Swimming Championships (25 m) hosted 974 athletes from 166 countries. The LOC medical team recorded all medical encounters—newly incurred (or acute exacerbations of chronic) injuries and illnesses as well as follow-up consultations.

Results More than 90% of teams did not travel with a team physician and relied on the LOCMC for diagnosis and treatment of injuries and illnesses in athletes and accredited team officials. The LOC medical team had a total of 554 medical encounters: 385 therapy, 34 athlete injury, 65 athlete illness and 70 non-athlete encounters.

Conclusions The LOCMC in collaboration with FINA delivered comprehensive medical services to athletes, officials and spectators attending the 12th FINA World Swimming Championships (25 m). This review paper provides information relevant to the planning and delivery of LOCMC medical services for future international swimming events contributing to the FINA objective of promoting athlete health.