Starting with a baseline of about 20,000 tickets sold (the number for Peru vs Haiti) the sales for the United States vs. Ecuador Copa America quarterfinal are up to 42,000. It's a good crowd, one that passes the 2013 World Cup Qualifier against Panama (40,847), but it also suggests there are about 25,000 or so unsold seats at CenturyLink Field.
That game is almost certain to pull in a greater audience than Argentina and Lionel Messi.
Tuesday AO Seattle opened their ticket sales to everyone.
We are opening supporter's section tickets to all. Upper area tickets available. https://t.co/oxGzL5PtMA— AO Seattle (@AOSeattle) June 14, 2016
Passcode is AOSEATTLE
The average attendance for the USMNT's three group stage matches was 52,707. The largest crowd came against Colombia (the tournament's opening night) when 67,439 showed up to Levi's Stadium, many of them rooting for the opponent. There were 39,642 for the Costa Rica match in Chicago and 51,041 at the Paraguay match in Philadelphia, both of which were heavily USMNT supporting crowds. Entering Tuesday's matches the Copa America Centenario is averaging 41,693. The largest crowd to ever watch the USMNT in Seattle was the 43,651 who saw them play Russia at the Kingdome.
High ticket prices are surely keeping those numbers from being even higher. The cheapest seats currently available cost $65 and midfield tickets in the 300 level are $250 before fees. Tickets in the supporters section are more than $100 once fees are factored in.