Managing multiple sports teams, even across various leagues, is easier with a good organizational system. Instead of trying to keep track of each of them together, use a method that separates the different teams and offers assorted category options, while still offering one easy-to-use database to stay focused and diligent in your record keeping.
Invest in a sports league management software that allows you to set up registration in a way that makes sense for your teams. Since all leagues are different, it only makes sense to have a program that offers a way to change the configuration for how players, coaches, volunteers, and other participants can register for their spots. This includes closing up a list when the maximum amount of people are reached for a particular spot, along with creating a waiting list in case a new spot opens up to allow the next registrant in line to get the position.
A good software program will help you to create practice and game schedules while notifying you of any conflict in dates you already have scheduled for one of your other leagues. Find one with the option of automatic notification to all registrants if you have to cancel a game or practice due to the weather or other unforeseen circumstances. This will save you the time of having to contact everyone yourself.
Keep track of all of your stats to see where each one of your leagues are sitting in the ranks. Record individual player data and overall team wins and losses, to determine additional practice time or other strategies to help your teams rise do better in upcoming games. Allow restricted access for players to look up their individual stats, as well as a higher level of access for coaches and other managers.
A good database allows you to see all you need to know at a glance, for each of the leagues you manage. It also gives you the option to store data across multiple seasons so you can reflect on all of your past achievements and the areas that need improvement, to set goals for the future.