Average is about 600 speed if the ratings are between 400 and 800. The current highest rating is about 829 I think and the lowest I have seen is like 360. If we use those ratings with no other data since clearly Mike Page would be be able to give an accurate world average, then 595 is the center which would mean 600 is slightly above average. It's hard for me to think of myself as just average but the ratings are what they are.
Posted by Mike Page on New Year's Day, 2021:
Amongst 788 people with 3,000 or more games, average rating is 612 and standard deviation is 100
Amongst 6400 people with 1,000 or more games, average rating is 555 and standard deviation is 99
Amongst 16,000 people with 500 or more games, average rating is 526 and standard deviation is 102
Amongst 41,000 people with 200 or more games, average rating is 493 and standard deviation is 108
Amongst 68,000 people with 100 or more games, average rating is 474 and standard deviation is 114
Sure we can say 200 games is what we consider "established," and so the average rating is 493. But we recognize this is a little arbitrary and depends on who is getting games into the system, etc.