http://iscoresports.com/

I created a new league (Last10games) and marked the appropriate games to see running stats for our team. I've exported from my device, but I do not see the new league on our team site in the league dropdown.

Is there a limit to the number of leagues that can be available in the dropdown? I've unselected all by 5 "leagues" on my device. Also, some of the unselected leagues are still visible on the team site league dropdown.

Make sure that you have associated the new league with your team (under team manager) and then do another export. The new league should show up. There is no limit. Remove the leagues that you do not want to show on the website from the team in the same manner.