Hope you don't mind me plugging this great app for iPhone and Android: it's for all Fans of Wordfeud, it is free and it is called FEUDFAN.
Great app that tracks all my wordfeud games and shows statistics like number of games won/lost and against whom; as well as average score, highest, lowest etc. And a world ranking too.
Try it out and see where you rank, I rank number 1762!
download: Feudfan for Android Feudfan for iPhone
More info on their website: Feudfan.com