Method of predicting the number of casualties in the Sydney City‐to‐Surf fun runs

A simple and effective method of predicting the number of casualties who may require urgent medical attention, which is based on previous experience in the City‐to‐Surf fun runs, including weather forecasts and number of entries, is described. In 1983 and 1984, the method was used to predict a number of casualties which was found to be consistent with the actual number. As a result of these predictions, the human and material resources were deployed effectively and all casualties were treated efficiently.