This document provides the grade thresholds for the Cambridge International General Certificate of Secondary Education (IGCSE) Physics exam taken in June 2013. It lists the minimum marks required to achieve each grade (A, B, C, etc.) for each exam component. The thresholds are determined by adding the minimum marks for each component taken and may be adjusted at higher grades depending on correlation between papers. An A* grade is awarded based on the difference between grades A and B. The overall exam thresholds for each combination of components to achieve each overall grade are also provided.