Re: White group scenario.
I think if Jelena and Vika win tomorrow, they advance period lol
If Jelena beats Caro 2 sets to 1,
Jelena will have 4-3 to Caroline's 5-4, which is a better percentage. Unless they do it off of sets won first x_x, in which case, Caro would go through.
If Jelena win but Vika loses, then Jelena and Caro advances. Unfortunately for Caro, Jelena and Caro are up first so Caro won't get to play gamesmanship xD