Quick, which is longer - your ring finger or index finger?
If your ring finger is longer, you're more athletic.
Mine, of course, is the wrong way around. Actually, they're about even in length.
BUT! My daughter Catherine (who LOVES to run) has a ring finger a whole nail longer than her index finger. However, her less-athletic twin sister Elisabeth has a longer index finger.
OK, so it might be interesting for chitchat in a bar some time. . . .