“The pink curve on the graph shows the mean driving distance for PGA tour professionals for every year between 1980 and 2008. The two curves either side show the average plus and minus 1 standard deviation (a measure of the variation amongst the golfers). The dots show the average driving distance for the longest driver of the year.

The graphs show a consistent increase of about 40m with much of that occurring between 1995 and 2005.”

Read the entire study at tutleman.com – they dive in to find out if the growth comes from golf technology or technique.