Thursday's Basel round of 16 pits Daniel Altmaier against Jiri Lehecka on hard. Jiri Lehecka comes in at 7 wins from the last ten. Daniel Altmaier comes in at 5 wins from the last ten.
Jiri Lehecka simply rates much higher on hard, and our number follows from it. Altmaier needs several things to break right at once; the percentages say they usually don't.