Frailty is associated with worse survival post lung transplantation than non-frail patients (Wilson et al. 2016). Recognition of these patients at assessment may help decision making regarding listing and target interventions to ameliorate frailty. Currently, the six-minute walk test (6MWT) is the gold standard for physical performance in lung transplantation assessment. The Short Physical Performance Battery (SPPB) is a well validated frailty measure with an emphasis on physical function. The aim of the study was to determine whether the SPPB correlates to six-minute walk distance (6MWD). Prospective observational service evaluation at a single cardiothoracic transplant centre. Frailty was quantified by using the SPPB and physical performance was quantified by the 6MWD in the lung transplant candidate population. The evaluation period was March 2017 to October 2017. Strong positive correlation found between 6MWD and SPPB (rho 0.663, n=78, p=<0.001. This study demonstrates that SPPB had a strong positive correlation with 6MWD. This would suggest that the SPPB is indicative of overall physical performance in lung transplantation candidates and may predict post-operative outcomes. Further research is now required to investigate how SPPB scores relate to 6MWD post-operatively to determine whether SPPB relates to clinical outcomes. In doing so, the clinical importance of the SPPB in addition to, or in replacement of, the 6MWD could be evaluated.