>>18104345
So the X Atrium at the Post Houston seems to have a seated capacity of 500 and a standing capacity of 2000 without a ring. It's probably closer to the first number than the second. They have 3 rows of chairs and a ring and the rest are standing tickets.

My incredibly rough total guesstimate is maybe 800 to 1000 people for Houston? Still really impressive for 2 days of shows to sell out.