Re: ~Petra Martic~
Yes, they've never played eachother, and Zanevska hasn't been playing great lately - up until now. Varv is definately the highest ranked player she's beaten this year, as her only noteworthy victory this season has been a win over Babos from Paris qualies. Of course, playing a girl who spends most of her days on the challenger circuit is still far better than facing a top 20 player.
Good luck Petra!