http://iscoresports.com/

I just did a data share between my iPad and iPhone...quite a few games and teams. However, none of the leagues came over. Did I do something wrong?

Leagues do not get shared with data sharing. When people are transferring data from one person's device to another, they may have leagues set up completely differently. You may like to group games in a certain way, and I group them in another, but I still want to get a copy of a game you scored. So the data transfer will assign all newly added data to whatever leagues are currently selected on the destination device.