Fellow Republican Congressman Joe Barton is fighting for the lines to be drawn so that he gets a ballpark in his district.
Happy birthday Wrigley Field, but are you too beautiful of a ballpark?
All in all, he probably spends in the ballpark of $5,000 a month on my lifestyle.
Ruth signed a bunch of autographs, then went to the ballpark and hit a home run, his 53rd.
Still, the numbers give you a rough idea of the ballpark expenditure.
As far as the NSA is concerned, they might not be in that ballpark at all.
Right now the healthcare systems is like someone using words that are in some sort of ballpark but don't quite fit.
Among The Fighter's virtues is the absence of a single reference to the ballpark or its tenants.
His ballpark estimate includes dedicated equipment, software and payroll system modifications.
"baseball stadium," 1899, from (base)ball + park (n.). Figurative sense of "acceptable range of approximation" first recorded 1954, originally in the jargon of atomic weapons scientists, perhaps originally referring to area within which a missile was expected to return to earth; the reference is to broad but reasonably predictable dimensions.
The result, according to the author's estimate, is a stockpile equivalent to one billion tons of TNT. Assuming this estimate is "in the ball park," clearly there is valid reason for urging candor on the part of our government. [Ralph E. Lapp, "Atomic Candor," in "Bulletin of the Atomic Scientists," October 1954]