Introduction and Aims: Delayed graft function (DGF) (defined as the need for dialysis in the first week post-transplant) remains a common complication after renal transplantation (10-40%). The pre-transplant evaluation of the risk of DGF may influence the decision to accept or reject the graft and could also help to customize the initial immunosuppressive treatment, for instance by giving ATG induction with delayed calcineurin inhibitor administration. Here, we analyzed and compared the performance of 3 published DGF calculators that, based on pre-transplant donor, recipient, and procedure data, compute the theoretical risk of DGF for each patient.