Francisco Cerundolo and Jan Lennard Struff meet in the round of 64 at US Open on Thursday. Francisco Cerundolo comes in at 6 wins from the last ten. Jan Lennard Struff comes in at 6 wins from the last ten.

There's a wide gap in our ratings on hard, and our number follows from it. The edge belongs to Cerundolo — real, but not the kind you take for granted at this level.