I remember Maria hitting 3 in a row against Krajicek at the Us open in 06, and then hit another to close out the game at 40-15.
I don't think i've ever seen 4 in a row though, not on the womens side anyway.
Fill in the Draw: Australian Open 2007,Bali 2007
Race The Game: Player of the Month January 2007 and August 2008,Player of The Week Istanbul/Strasbourg 2007, Carson 2007,New Haven/Forest Hills 2008, US OPEN 2008
Pick A Winner: Stanford 2008