I know people are questioning fun things that could be done at IRI between matches. I had a couple ideas... but then again, I know whatever 45, 234, and 393 come up with will be a blast!
Here's an idea for you - all the 'Beatty spawned' teams against one another - 461 (kinda), 1000, 1020, and 1064 (well, I'm partial to this idea.

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Even better - and probably more popular - a 'Powerhouses of the Midwest' match, with teams like 45, 71, 111, 234, 393, etc. I think that would go over well...