Originally Posted by Fat LightningKimba
Hmm... Unless my calculations are wrong, a pokémon, this month, is OU if it's used in over ~24267 battles (1/20th of 485,335 = 24266.5, according to my calculator).
That means Crobat barely makes it into OU, with Alakazam and Rhyperior dropping out of OU, and into UU. That is, if I calculated correctly.
Your calculation is wrong. The actual OU cutoff is at 3.4% (at least, that's what it ends up being when you run the calculation). That means Umbreon, Crobat, Alakazam, and Rhyperior are all under the line this month. Also, for the future, remember to use only the OU battles in your calculation. The total battles also includes the ~100,000 UU, Uber, and unrated battles.
However, the tiers are a weighted average over the past three months, meaning Umbreon may hold its position. Crobat isn't going into OU this time, but, yeah, Alakazam and Rhyperior are probably going into UU.