The physics of an optimal basketball free throw

Abstract

A physical model is developed, which suggests a pathway to determining the optimal release conditions for a basketball free throw. Theoretical framework is supported by Monte Carlo simulations and a series of free throws performed and analysed at Southbank International School. The model defines a smile-shaped success region in angle-velocity space where a free throw will score. A formula for the minimum throwing angle is derived analytically. The optimal throwing conditions are determined numerically by maximising the expected number of successful shots given the error pattern inherent to the player. This approach is fully quantified by the model presented and suggests a reliable way for individual free throw improvement. The model also explains recent NBA data showing that some of the most successful free throwers bear completely different conditions to the average player.