What is a good rating for Blitz for a 11 yr old?

As writen above

I would say something like a 1600 or a 1700. I don't know though.

Drink water.

15-16 hundred, I think

1500?

All ratings are good, it depends on how much you get involved in playing chess and learning chess :)

hmm... I'm 8 years old and my ultrabullet rating was 1641...

ME TOO BUT MY BES RATING IN ULTRABULLET IS 1568 AND IN BLITZ 1416

If 11 then 1100.

It depends on how much you play.