Frank makes two pars and a birdie on 7, 8, and 9, and by the turn he has become a different golfer. Not statistically — the same golfer, same swing, same handicap he had at 8:15 that morning — but psychologically, completely transformed. He tells the group he’s “seeing it well.” He orders a cart-girl beer he wouldn’t normally order. On 10, a tight dogleg he plays safe on every other day of his life, he pulls driver and aims at the corner. He’s in the trees by 10:15.
This is the hot hand fallacy, and golf might be one of the purest natural habitats for it anywhere in sports.
The concept comes from a landmark 1985 study by psychologists Thomas Gilovich, Robert Vallone, and Amos Tversky, who examined shooting data from the Philadelphia 76ers and found that players’ field goal percentages after a streak of makes were statistically indistinguishable from their percentages after a streak of misses. The “hot hand” — the belief that success breeds success in the short term, that a player gets rolling in a way that predicts what happens next — showed no reliable signal in the data. Players, coaches, and fans all believed in streaks that the numbers couldn’t find. The effect has since been examined across multiple sports, and the basic finding holds up more often than sports intuition would like: recent success is a weak predictor of what happens on the very next attempt, because a golf swing, like a jump shot, doesn’t accumulate momentum the way a hot streak feels like it should.
Three good holes in a row are well within the range of ordinary variance for any golfer, including a 14 handicap. It doesn’t mean Frank’s swing has changed. It means three shots landed inside his normal dispersion pattern instead of at the edges of it, which happens regularly to everyone, and means nothing at all about hole 10.
The dangerous part isn’t the good feeling — it’s what the good feeling licenses. A golfer who feels “hot” takes on risk he wouldn’t take cold: a tighter line off the tee, a more aggressive number to a back pin, a longer birdie putt hit at speed instead of lagged. None of that risk is justified by three good holes, because the underlying probability of the next shot hasn’t moved. The golfer has simply updated his confidence without updating anything that actually predicts outcomes.
Steve, who plays the same three holes as Frank and pars all of them without comment, doesn’t experience a temperature change at the turn. He experiences three pars. On 10, he hits the same 3-wood off the tee he hits every single time, aims at the same fat part of the fairway, and makes his fourth par of the day. Frank, from the trees, calls it a cold spell. It was never hot to begin with.
Source: Gilovich, Vallone & Tversky (1985), “The Hot Hand in Basketball: On the Misperception of Random Sequences,” Cognitive Psychology.
