it's up to how Kim faces the match.
Mary, on or off form is one of the best strikers of the ball, when she is on (her game, not physically) she is lethal, her problem is that she doesn't get to the balls.
A good example was her match against Chanda last year (can't remember the tournament and can't bother to look). First set Chanda was playing dumb, to Mary's' body and Mary won 6-0, then Chanda started to move Mary around and won.
The same will happen here, if Mary is on. If Kim moves her around I think Kim will win, but if Kim is dumb and hits down the middle, to Mary's body she is in big trouble.
Additionally, Mary needs to start well, because that will get the crowd on her side. The french are not very patient and if she starts bad she can get booed, on the other hand, if it looks like she can put up a fight, the crowd will be behind her and believe me, they can be really noisy. I don't know how Kim will deal with that since she has never played with the crowd agaisnt her.