The New York Yankees are tied for the lead in the American League East. This isn't unusual, as the Yankees have the largest payroll in Major League baseball and so attract the biggest talent. This year is typical, in that the Yankees have scored 83 more runs against their oponents than their opponents have scored against them. That's how you win.
But here's the weirdness: The Baltimore Orioles are tied with the Yankees for the lead in the AL East. The Orioles' opponents have scored 19 more runs against them than the Orioles have scored against their opponents.
I don't think I've ever seen a winning team that gives up more runs than they score.