The new league table measures (Attainment 8 and Progress 8) are based on performance in a student's best eight subjects at GCSE (or equivalent). One criticism of the previous measures was that they penalised schools with a low-attaining intake. As Progress 8 is a value-added measure, it already accounts for the prior attainment of the student and should in theory no longer penalise these schools. The purpose of this research was to delve deeper into the relationship between Progress 8 scores and various student and school level factors. In particular, multilevel regression modelling was undertaken to infer which factors were most important in determining scores at student level. The results showed that various groups of students were predicted higher Progress 8 scores including girls, less deprived students, students without SEN and students in schools with a higher performing intake. At the school level, higher Progress 8 scores were found amongst schools with higher-performing intakes. This suggests that one of the main aims of the new measures (levelling the playing field) has not been completely achieved.