I always played on The Sporting News site but it looks like they either don't offer it or it is now a pay site? But, this site has a nice Playoff Pickoff Contest, in which last year, I finished tied for second... I think?
Here is a link to the Cafe Contest: viewtopic.php?t=489645
BTW, just to let you know I will be playing this contest too.... so be forewarned that according to the Lung, you need to start running like a rat from a sinking ship if you know whats good for ya.
In reality, I welcome the competition! Good Luck!