Bartůňková broke for 1-0 and again for 4-1, then for 6-1 to seal it, with Mertens saving two of three break points in that final break.
Mertens broke for 2-3, 5-4 and held for 6-4, rallying from 0-3 down, while Bartůňková saved two of two break points in a hold for 3-0 but could not sustain it.
Mertens broke for 2-1 and again for 5-2 in an 8 minute deuce game, then held for 6-2, with Bartůňková saving one of two break points in that penultimate break.