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The stats behind Phil Mickelson’s switch to Andrew Getson



It was big news in the golf instruction industry when Phil Mickelson decided to part ways with long-time coach Butch Harmon and hired Andrew Getson to take over. Mickelson was not exactly performing poorly by normal Tour standards, as he made 16 out of 19 cuts and finished 48th in Adjusted Scoring Average for the season. But Mickelson’s seasons are judged by victories and performance in the majors, and Phil may have felt that there was a need to change after two winless seasons.

As a golf statistician, I wanted to look at Phil’s performance from this past season along with his performance in his most recent “big” season, 2013, when he won the British Open, finished 12th in Adjusted Scoring Average and earned nearly $5.5 million. I would assume that performance in 2013 is something that Phil wants to get back to.


While the two most important metrics in the chart above are Par-4 Scoring Average and Bogey Rate, it’s always good to look at all of the metrics to help paint a more clear picture of what is going on with the golfer’s game. In Phil’s case, the drop-off in Par-4 Scoring Average and Bogey rate is dramatic and needs to be addressed.

For most of Phil’s career, he’s been a great iron player and a weak driver of the ball with fantastic ability to get up-and-down. So I would immediately wonder how his typical game is playing a factor in this decline in performance. The silver lining in all of this, however, is that he can still make a lot of birdies.



The driving metrics are interesting because the only sub-category of metrics that Phil was better in this season was driving distance. He ended up 74th in Driving Effectiveness, however, the main reason being is that Mickelson ranked third in terms of driving difficulty schedule. I have found it easy for a Tour player to fall in the trap of thinking he is not performing well in a certain area of the game when the reality is that the difficulty has amplified. He can actually be doing well in terms of his performance versus the rest of the field.

For instance, TPC Summerlin is one of the most difficult courses to hit short-game shots (inside 30 yards) on the entire Tour schedule. Thus, I remind my clients to not get too down on themselves if they are not hitting their short-game shots close. The make percentage on the greens is higher, too, so they can save par anyway. This may have been a problem for Phil. He may have felt that his driving performance was not improving, but in reality the conditions and course designs were more difficult than they have been in the past.



Iron play has usually been Phil’s greatest strength, and it was on display in the 2013 season. It is becoming a weakness now, however. The drop-off is larger from 100-150 yards, but the smart move would be to work on his performance from 175-225 yards, because that will have a bigger influence on lowering his scores.

And just so we can make sure that his drop in iron play is not due to missing more fairways, here is his performance from the fairway versus the rough.


Also, there was a new metric that I started to record this year: Scoring Average on Dogleg Left Holes versus Dogleg Right Holes versus Straight-Away Par-4’s (adjusted based on hole difficulty).


I find these metrics interesting. Phil’s overall driving has improved, but while he hits a ball that curves from right-to-left his performance on the DogLeg left Par-4’s is much worse.

While I am in the initial stages of studying the doglegs versus the straight-away par-4’s, the initial analysis shows that more of the very long Par-4’s (460+ yards) tend to be DogLeg left holes. With Phil’s performance from 150-225 yards regressing, that may explain why he has struggled on the dogleg left par-4’s this past season. And that regression on longer approach shots would help explain his struggles on the par-3’s, as par-3 play is one part iron play, one part short game and one part putting outside 20-feet.



Phil’s Total Short Game performance has regressed mainly because he has regressed most from the most important distance, 10-20 yards. This would play a bigger factor in his struggles on the Par-3’s and his ability to avoid bogeys on the Par-4’s. Essentially, he is not hitting as many GIR because of his iron play, and cannot hit his short game shots close enough to put himself in good position to save par.



Phil still putted well in 2015, so I don’t think that is a big issue. In fact, the history on Tour shows he was not likely to sustain his putting from outside 15-feet regardless of what he did after the 2013 season.

I expect Phil to continue to work on his driving, which is not necessarily a bad idea. However, he made nearly $5.5 million and won a major while driving the ball poorly in 2013. I think the better move is to focus on getting his iron play back, particularly from 150-225 yards, and see if they can regain his old short game form.

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Richie Hunt is a statistician whose clients include PGA Tour players, their caddies and instructors in order to more accurately assess their games. He is also the author of the recently published e-book, 2018 Pro Golf Synopsis; the Moneyball Approach to the Game of Golf. He can be reached at or on Twitter @Richie3Jack. GolfWRX Writer of the Month: March 2014 Purchase 2017 Pro Golf Synopsis E-book for $10



  1. Steve Allison

    Dec 4, 2015 at 10:45 am

    Phil needs to get shed of that old timey putter, Please Phil go to Scotty!!

  2. Steve Allison

    Dec 4, 2015 at 10:40 am

    The best thing Phil needs to do is to get rid of the old timey putter and go to Scotty Cameron and let Scotty make a putter that is right for him.

  3. Jack

    Dec 3, 2015 at 9:23 am

    Great article. Another good read from Rich! Really interested to see the findings on dog legs. I’m thinking that you may see better scoring with players that shape the ball against the shape of the hole. Ie misses will more likely be on the ‘far side’ of the dog leg!

  4. Pingback: Back Nine News – The Best Golf Stories & Videos of the Week | Golf Science

  5. I'm Ron Burgundy??

    Dec 2, 2015 at 2:18 pm

    I enjoyed the analysis! It is very interesting to see stuff like this and number do not lie. I wonder how much is rheumatoid arthritis has played into his ability to be able to practice and play as often as he would like? I would assume that someone with his condition has good and bad days.

  6. Richard

    Dec 2, 2015 at 5:52 am

    Very interesting but with one error which I wish all columnists at Golfwrx would get right. It is The Open NOT The British Open.

    • Richard

      Dec 3, 2015 at 4:06 am

      HI Bubba. With respect, please check out the PGA Tour Schedule for 2015/16…
      You will see that the PGA tour even call it “The Open Championship”. Calling it the British Open would be like calling The Masters The American Masters as there are various Masters tournements around the world. I know I’m being a golf pedant. 🙂

      • Bob

        Dec 6, 2015 at 2:17 am

        Isn’t calling it the British Open more analogous to calling the men’s open tournament run by the USGA the “U.S. Open”?

  7. Bobalu

    Dec 1, 2015 at 6:19 pm

    RH- Well done. Interesting analysis. Let us know if Phil sees this and gives you any feedback.

  8. Greg V

    Dec 1, 2015 at 12:30 pm

    Phil won $5.5 million in 2013 based largely on wins at the Scottish Open, Open Championship and a second place finish in the US Open. The keys to his fine play in those three tournaments were Phil’s use of the mini driver off the tee, and fantastic wedge play.

    The mini driver and excellent wedge play are really all you need to know about the keys to Phil’s ability to win another major.

    • Richie Hunt

      Dec 1, 2015 at 2:18 pm

      Greg V –

      I don’t have the data for those specific events because 2 are majors and the other is the Scottish Open which does not count towards those $5.5 million in earnings (PGA Tour only). You will generally find that in the Majors, shots from 175-250 yards matter most if you want to segment them. Driving is typically more important at the US Open than at the British Open. But, wedge play rarely makes a substantial impact. I think from 2013 we can see how elite Phil’s iron play was and I would imagine that it carried over to the British, Scottish and US Opens. In Phil’s years using the mini-driver, his driving still wasn’t very effective.

  9. cgasucks

    Dec 1, 2015 at 11:28 am

    While I understand why Phil had to change instructors, he has to accept the fact that he’s not the young gun as he once was in the late 90s and early 2000s (Jordan, Rory, Jason and Dustin have that torch now) and his career is on the downswing. He’ll have to accept 10 ten finishes at best while he is old enough for the Champions tour.

  10. HG Wells

    Dec 1, 2015 at 11:25 am

    I do think we’ve all been waiting for the other shoe to drop with the RA and it’s effect on his game. And of course his age can’t be overlooked, although based on his driving distance he’s still plenty competitive athletically. Really though, looking at those stats, doesn’t just look like someone who hasn’t been playing as much golf? It really all looks like just an overall decline in sharpness due to fewer reps in the practice area. It’s always seemed to me that his golf game kept his interest much longer than most of the top money winners in the era of instant-millionaire golf, but it’s only natural to slow down a bit when life is frankly pretty damn good by all appearances. And with that much money on the table, the young guys are now grinding harder than ever to get there.

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On Spec

On Spec: Interview with Abby Liebenthal—Marketing Manager at Imperial Headwear



In this special edition of On Spec, host Ryan Barath has a conversation with Abby Liebenthal, Marketing Manager at Imperial Headwear. The discussion covers a wide range of topics from growing up around the game of golf, working in the industry, and Abby’s newly founded Fore the Ladies, which organizes fun and inviting events to introduce women to the game.

Check out the full podcast on SoundCloud below, or click here to listen on iTunes or here to listen on Spotify.

Want more GolfWRX Radio? Check out our other shows (and the full archives for this show) below. 

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Opinion & Analysis

Honoring our heroes with golf



Mr. Parsons’ military service and the impact it made on his life is the foundation of the PXG brand. In my time with Bob, I am always excited to get into this topic because of how much passion he has for it. If you watch the initial video of this series, he goes in-depth as to just how much his service changed his life.

PXG Heroes is an extension of Mr. Parsons’ appreciation for that time and one of the many ways he is giving back to veterans and first responders. Led by 26-year Marine Corps veteran Kevin Hudson, the program has put PXG clubs in the hands of over 16,000 military veterans and first responders. This gesture has created a community of PXG Troops across the country, and in many cases brought some of our heroes back from PTSD and the challenges that our men and woman of the armed forces face upon coming home to civilian life. Truth be told, I don’t believe its the discounted clubs that are the headliner here or the ultimate difference-maker into a veterans recovery, it’s the community that is created around it and the promotion of a game that does have healing powers.

In addition to the PXG For Heroes program, the Bob & Renee Parsons Foundation has also raised more than 100 million dollars for the Semper Fi Fund, in an annual Double Down For Veterans match campaign. The Semper Fi Fund and America’s Fund help provide urgently needed resources for combat wounded, critically ill and catastrophically injured members of all branches of the U.S. Armed Forces and their families.

Through December 31, 2019, the Foundation will once again match donations to the Semper Fi Fund–up to $10 million–with the goal of raising $20 million to continue providing vital assistance to our service members and their families.

I’ll let Kevin explain the rest to you in the video as I won’t do it justice, but I will leave you with this: In true Bob Parsons style, he dug in deep on this initiative, and of all the things we ever discuss, this topic is the one that really gets him going. It’s who he is, was, and what he wants PXG to stand for as a brand.

Enjoy the video.

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Bogey Golf

Bogey Golf: The greatness of Tiger Woods



Larry, Pat, and new show guest Elayna talk about the career of Tiger Woods. His greatest wins, records, and shots. We then compare him to other great athletes. It’s a show befitting the greatest golfer in the world!

Check out the full podcast on SoundCloud below, or click here to listen on iTunes or here to listen on Spotify.

Want more GolfWRX Radio? Check out our other shows (and the full archives for this show) below. 

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19th Hole