Harold Reynolds, on the MLB Network earlier this week, suggested that the Twins have the best home-field advantage in all of sports.

Just in terms of baseball, that seems to make a lot of sense. After all, the Metrodome features two unusual characteristics — artificial turf and a white roof — that could give fits two an unfamiliar team. (Granted, all Major Leaguers have played on turf at some point, but not with the frequency of the Twins, Blue Jays and Rays.)

Anyway, the comment intrigued me, and I had an intern available to me with nothing else to do, and I love graphs. So, thanks to Jon T. Intern, here’s the differential between home winning percentage and road winning percentage for the Twins and the entire league over the last five seasons:

So, by this relatively unscientific and totally imprecise method, the Twins have played to a better-than-average home-field advantage in four of the last five seasons. Is that significant?

Maybe, but I’m skeptical. It looks, to my untrained eye, like the whims of randomness and sample size.

Jon is working on another graph charting a bunch of other teams, ones that — off the top of my head — I thought might demonstrate a home-field advantage. Plus the Mets and Yankees, just because.