This will be their first meeting.
Kasatkina has a better win loss ratio ratio this year but all stats other than service holds favour Bacsinszky.
From what I saw of Kasatkina v Puig she was being out played but ended up winning in a third set tie break.
Bacsinszky had an easy win over Pironkova in the second round. I expected Bouchard to beat her after the way the Canadian played in the previous match but Bouchard was really poor. Even so, Bacsinszky needed 3 sets.
This can go either way and so value is on Kasatkina but I favour Bacsinszky to win a very tight match. Back her above 2.00