Siniaková broke for 1-0 and again for 4-1, then broke for 6-1 to seal the set either side of a 65 minute weather delay, with Krueger unable to hold serve.
Siniaková broke for 2-0 and again for 4-0, then broke for 6-0 in a clinical display, saving break points in a hold for 1-0 to deny Krueger any foothold.