The reason I wanted to tag this is because during the time there is league here there are no tables available for general public use. So if anyone shows up expecting to play pool they won't be able to get a table until league ends. 

I discussed this on the OSM Discord server and this was basically the best thing we could come up with for how to tag it. I do agree that opening_hours is a bit of a top level weird key to have, but there aren't really any other better ones to use.

I think its fine to have these tagged here, I just really wish there were a better way to tag them. Especially since it is providing a lot of info about this location that there isn't any other good ways to tag. Like what Leagues play here, or what game formats they do their tournaments in.