I got some stats from Vainsocial, actually pretty surprising but i guess they aren't really accurate.
They only count Matches (Casuals/rankeds) since July 4, 2017 and not players! I assume higher ranked players play more games so don't expect a real player count:
Tier 1 : 18k
Tier 2 : 14k
Tier 3 : 32k
Tier 4 : 105k
Tier 5 : 101k
Tier 6 : 115k
Tier 7 : 75k
Tier 8 : 46k
Tier 9 : 51k
Tier 10: 22k
Total: 603k Games
So I guess a majority of the games played are in tier 4,5 and 6...
Posted: Jul 13, 2017