Does playing against Tiger Woods make your golf game worse?

Success is intimidating. When we compete against someone who’s supposed to be better than us, we start to get nervous, and then we start to worry, and then we start to make stupid mistakes. That, at least, is the lesson of a new working paper by Jennifer Brown, a professor at the Kellogg school.

Brown demonstrated this psychological flaw by analyzing data from every player in every PGA tournament from 1999 to 2006. The reason she chose golf is that Tiger Woods is an undisputed superstar, the most intimidating competitor in modern sports. (In 2007, Golf Digest noted that Woods finished with 19.62 points in the World Golf Ranking, more than twice as many as his closest rival. This meant that “he had enough points to be both No. 1 and No. 2.”) Brown also notes that “golf is an excellent setting in which to examine tournament theory and superstars in rank-order events, since effort relates relatively directly to scores and performance measures are not confounded by team dynamics.” In other words, every golfer golfs alone.

Despite the individualistic nature of the sport, the presence of Woods in the tournament had a powerful effect. Interestingly, Brown found that playing against Woods resulted in significantly decreased performance. When the superstar entered a tournament, every other golfer took, on average, 0.8 more strokes. This effect was even more pronounced when Woods was playing well. Based on this data, Brown calculated that the superstar effect boosted Woods’ PGA earnings were boosted by nearly five million dollars.

Brown argues that this phenomenon is caused when “competitors scale back their effort in events where they believe Woods will surely win.” After all, why waste energy and angst on an impossible contest?