At some point in the life of every sports fan there comes a moment of reckoning. It may happen when your team wins on a last-second field goal or three-point basket and you suddenly find yourself clenched in a loving embrace with a large hairy man you've never met and with whom you have nothing in common except allegiance to the same team. Or it may come in the long, hormonally depleted days after a loss, when you're felled by a sensation oddly similar to the one you felt when you first experienced the death of a pet. In such moments, even the fan who rigorously avoids anything approaching self-awareness is sometimes forced to confront a version of the question others - spouses, friends, children, and colleagues - have asked for years: "Why do I care?" In very general terms that's what this book is about - the human obsession with contests.