They didn't run Alphastar on ladder long enough to really converge on a MMR (they also ran a bunch of different accounts in parallel and combined their results)

They didn't run Alphastar on ladder long enough to really converge on a MMR (they also ran a bunch of different accounts in parallel and combined their results), but they projected ~6.3k Protoss, ~6k Terran and ~5.8k Zerg. With those MMR, you'd... probably not expect it to be beat Serral (7.5k MMR lmao...)