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Seems like this would only happen when printing the overall score for 0 battles? Is it possible that was the situation? If so I'm not as worried about it being a bug, but we should check for it and print something nicer. If it shouldn't have had 0 total battles, then it's a deeper problem with the score tallying I guess.

This is my first experience with GitHub, so I don't know for sure, but I'm pretty sure the main idea behind forking is for you to make changes and then I can pull them back in. I think you issue a "pull request" once you've made your changes. I also think it can function fine as a new project if you don't ever intend to merge back.