If you want to win an Olympic medal, you must train, diet, train, diet and train, plus buy flashy skin-tight glistening sportswear and weird wrap-around sunglasses and load carbs the night before--and, oh yes, become a Protestant.
That's the theory, anyway, whispered among some Christians and based on Olympic medal counts.
Since the modern Olympics began in Athens in 1896, predominantly Protestant countries have won more medals than all other nations combined. Protestant countries have bested Catholic countries by an almost four-to-one margin since 1896. At the most recent Olympics, in Sydney in 2000, of the top ten nations, 265 medals went to Protestant countries (the United States, Australia, Germany, the Netherlands, and Great Britain), 101 medals to Catholic nations (France, Italy, and Cuba), 88 medals to Orthodox Russia, and 59 medals to hard-to-classify China. See the complete Sydney medal count here.
Of course, these are macro figures. Athletes from the "Protestant" United States may actually have been Catholic, Jewish, Muslim, Buddhist, nonbeliever, you name it. "Catholic" France surely sent Protestants to the Games, while "Orthodox" Russia sent Muslims and so on. Additionally, Islamic nations are hobbled by dress codes for women--27 countries do not send female athletes to the Games for this reason.
These medal classifications are at best rough guides. African nations had their best-ever medal performance at Sydney, for instance, bringing home a total of 35. Africa is so diverse religiously--Catholics, Protestants, Mormons, Muslims, animists-- it's hard to know where to put it for purposes of a rough estimate like this.
Perhaps this only tells us that Protestant nations love sports and have the prosperity needed to train and support athletes. Group together the United States, Australia, Germany, the Netherlands, and Great Britain--Protestant medal dominators of Sydney--and you could lead the world in practically anything, based on prosperity and economic output.
Whether these nations are so strong because of a Protestant work ethic, or for other reasons, is a question that could be debated forever. My personal guess is that the secret of success for this Protestant Five is not religion or geography or resources but freedom, and that as non-Christian nations achieve traditions of freedom too, they will bloom in strength.
But the Protestant work ethic question must at least be entertained as regards the Olympics. As the Catholic theologian Michael Novak wrote in "The Joy of Sports," "The spirit of play is Catholic; the spirit of work is Protestant." Touch football in the park, pickup basketball, tennis, or swimming with your friends--at essence, are play. Training for the Olympics--at essence, is work.
This can be deceptive in two ways. First, it's not exactly that people, who are not Protestants, don't work, work, work. At subsistence labor, impoverished Catholics, Muslims, and Hindus of the developing world work, work, work each day in ways that most Americans can barely imagine.
Second, the Protestant work ethic represents an inversion of a classical theological dispute between Catholicism and Luther's brainchild. Traditionally, the Catholic Church teaches salvation by works: You must exert yourself in life both by liturgical obligation and by moral acts such as helping the poor to gain God's approval. Luther, in contrast, preached salvation by grace: Faith was all that was required. The concept of salvation sole fide, solely by faith, would eventually get twisted around into the Calvinistic belief in predestination (that you literally need do nothing, you were born either saved or damned) and the Nazi-era concept of "cheap grace": As long as you went to church on Sunday, you could be a Nazi the other six days of the week.