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Jordan Spieth’s 2015 Scoring Chart

Jordan Spieth rocked it in 2015 …. five wins, two major championships, FedEx Cup champion, $23 million on-course earnings and the Vardon Trophy.  However, I am certain that you and/or your students will be amazed at the insights the chart below presents.  Share this with your students, adults, juniors and their parents!

To show you what sort of year Jordan Spieth had, I have displayed in the chart below all of his 2015 scores and the frequency in which he shot those scores.  Please note there may be some European Tour scores included.  Additionally, he shot over 20 rounds where he shot 68 which exceeded our y-axis on the chart.  And for those that don’t know, winning the Vardon Trophy means that he had the lowest scoring average on the PGA Tour so when you look at these numbers you should realize that you’re probably not going to find anything better.

You can see that his average score was 68.58 and his median was 68.2.  These scores are also displayed with lines on the chart.  His average score is depicted with a blue line and his median with a white line.  The median for those who don’t know (or remember from college stats class) is the middle which in this case means there are as many rounds of golf, and therefore scores, on the left side of the white line as there are on the right side of the white line.  That said, the scores on the left side of the white line are lower than the median and the scores on the right side of the white line are higher.

Jordan Spieth's 2015 scores GRAPH

Things to Note:

  • The difference between his best and worst scores of the 2015 season was 14 strokes.  I have done this charting on several players over the past few years and the lowest margin between best and worst rounds was Yani Tseng with 12 strokes in 2011.
  • Jason Day’s 2015 score chart, which I posted last week, shows a difference of 20 strokes between his best and worst scores.  And if your memory is short, it would be Jason Day’s 2015 season that you’d like to have if it wasn’t Jordan Spieth’s!
  • Jordan Spieth has a 50% chance of shooting his median score or lower and a 50% chance that he’ll shoot his median score or higher.

Key Takeaways:

  • Las Vegas is going to bet that he shoots his average score and not his best score.  The same is true for you.  Golfers (and parents of juniors) should know your average score over your handicap.
  • The best players in the world tend to have a 13-14 stroke gap between their best and worst rounds of the year.
  • Players tend to shoot their lowest score only one or maybe two times during a season.
  • All golfers have some sort of “bell” curve of scores.  It’s very challenging to squish that curve to less than a 12 shot difference.  We’re all just working to move the curve to the left giving us a lower scoring average.
  • If you divided this chart into thirds (as you see below), you can begin to think that there are average scores, worse than average scores and better than average scores.  The same concept is true for the caliber of shots you hit, the kinds of bounces you will encounter, the kinds of weather you will play in, the condition of courses you will play, the personality of the opponents you will play with, the tee time you draw, the type of warm-up you may have and more.
Bell Curve Shots

A special thank you goes out to Dr. Rick Jensen for sharing his wisdom and who explains such a chart so wonderfully with his famous jar of marbles.

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