(decimal odds are around 1.83 for a straight win, but we want to go at least -2 (and up to -3.5 if you are Austin Powers ), so we're looking at around 2.1)
Parlay:
Kirilenko vs Goerges - Kirilenko -2.5 (~2.1)
Martinez Sanchez vs Peer - Martinez Sanchez -3 (~2)
Combined odds: 4.2
Also, a single bet on Martinez Sanchez (at anywhere from -2 to -4, I suggest -3.5) looks good to me, for some extra safety.
Edit:
If you cannot get good odds (both picks' odds are dropping, Kirilenko's particularly fast) or if your book doesn't allow colorful parlays, add:
Petrova vs Zakopalova - Petrova (~1.5)
If you can take her at -3.5, also as a single bet, even better.
Other than that, the following should also win tonight:
Vinci Petkovic Dushevina Scheepers Niculescu
The odds should be around 6:1 to parlay them.
Last but not least (slightly more risk involved here ):
Parlay:
Zvonareva vs Radwanska - Radwanska +2 (2) Tokyo
Gajdosova vs Medina Garrigues - Medina Garrigues (2.3) Beijing
Petrova vs Zakopalova - Petrova -2.5 (~1.9) Beijing