Ogerpon-Base/Teal's base Speed looks like absolute bull because Ogerpon-Base/Teal doesn't look fast at all in the trailers. I still stand by my Base 90-100 Speed guess.
Small heads-up:
this "leak" is obviously fake and made by someone who doesn't know what they're talking about, buuut remember that Teal Mask Ogerpon is the one whose Embody Aspect boosts its Speed.
I guarantee this will not be less than a +1 boost (recall that Protosynthesis and Quark Drive singled out Speed to boost it by the same amount as a +1, even though every other stat was only 30%).
This form
is going to be defined by its Speed almost no matter what, regardless of appearances - even something like base 79 would be faster than Dragapult (the fastest relevant unboosted Pokémon right now) with Embody Aspect factored in.
Your guess of base 90 to 100 is actually a bit higher than I would have guessed on my own, to be honest! but that's because we need to factor the free Speed boost into any predictions. Still, there's a lot of Speed creep this Gen and it does have some Booster Energy users to compete with, so it's true that (almost) anything is possible O:
Um. Or of course you could just go and give it pseudo-base 250 Speed for no reason like this guy : D It's not even close to the most obviously wrong thing here either way asdjfk
I don't even know why so many of these fake leakers seem to think Ogerpon is a restricted Legendary though