Performances worth considering:
AO: Federer 2011, 12, 13; Djokovic 2019, 20, 21
RG: Federer 2011, 12, 15; Djokovic 2019, 20, 21
WB: Federer 2012, 14, 15; Djokovic 2018, 19, 21
USO: Federer 2011, 15; Djokovic 2018, 21
Ordering by level:
AO: Djo 19 > Fed 11/12 = Djo 21 > Djo 20 > Fed 13
RG...