Well, just like every year, all the finalists were boys. But as anybody except the nerds should know, the real reason that boys do better at geography is sports. From an early age, you see, boys follow sports. And you have to know your geography to follow sports.
Boys learn where their team plays.
They know where their team goes on a road trip. They even learn to spell Cincinnati correctly, with the right number of n's and t's, which nobody can do unless he learn that as a young sports fan. See, you have to know that to know when the game starts. Once you know your leagues, you're into geography. As a matter of fact, sports gamblers probably know more about geography than any group of laymen.