The firm concluded that Boston's Fenway is home to the most expensive brew. Beers there run $9.60 on average for a 16-ounce pour. That's 60 cents an ounce.
At AT&T Park in San Francisco, patrons pay an average of 42 cents an ounce. That comes out to about $6.70 for a 16-ounce beer.
At Oakland's O.Co Coliseum, beers go for 36 cents an ounce, or about $5.70 for the same beer.
The cheapest ballpark beer is found at in Anaheim, the home of the Los Angeles Angels. Fans pay just 28 cents an ounce; just under $4.50 for a beer.