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Do you actually understand “Strokes Gained” stats? Here’s a breakdown

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In 2011, the PGA Tour introduced ShotLink, which is a real-time scoring system that captures data points on all shots taken during PGA Tour events. ShotLink measures the distance from the hole, as well as categorizing shot types like tee, fairway, rough, sand, and green.

Mark Broadie, a professor at Columbia Business School, took the data from ShotLink and helped develop a new way to analyze putting performance. This new statistic was called “strokes gained: putting,” and it measures the number of putts a golfer takes relative to the PGA Tour average from that same distance. Strokes gained putting recognizes that sinking a 20-foot putt represents a better performance than sinking a three-foot putt, even though they both count as a single putt and a single stroke on the scorecard.

This was revolutionary because golfers no longer had to rely on the number of putts per round to understand their putting performance. Strokes gained also provided a unified way to measure an individual golfer against his opponents on the PGA Tour.

In 2016, the same concept used for strokes gained: putting was applied to other areas of the game. The PGA Tour developed new statistics including “strokes gained: off-the-tee,” “strokes gained: approach-the-green,” and “strokes gained: around-the-green.” This expansion allowed a PGA Tour golfer to precisely see where he excels and where he needs to improve.

What is strokes gained

In the most simple terms, “strokes gained” is a way to measure a player’s performance compared to the rest of the field. It also allows you to isolate different parts of a player’s game. In order to understand the statistic, you have to know that the PGA Tour has historical data from ShotLink that has calculated the average number of strokes needed to hole out from every distance and location on a course. Below I have included four scenarios to better illustrate the idea of strokes gained.

The scenarios below show how strokes gained could work on a single hole. Remember most strokes gained statistics are the aggregate of all the holes for a players round.

Scenario No. 1: Driving

You are playing a 450-yard par 4. The PGA Tour scoring average for a par 4 of that length is 4.1 strokes.

You hit a drive that ends up in the fairway, 115 yards from the hole. The PGA Tour scoring average from in the fairway, 115 yards out is 2.825 strokes. In order to calculate strokes gained: off-the-tee you use the formula below

(PGA Tour average for the hole) – (PGA Tour average left after your drive) – 1 = strokes gained: off-the-tee

Next, plug the numbers from the scenario above into this formula to calculate the strokes gained: off-the-tee

4.100 – 2.825 = 1.275 – 1 = 0.275 strokes gained: off-the-tee

Since you hit your drive in the fairway 115 yards from the hole you gained .275 strokes off the tee from the average PGA Tour player.

Scenario No. 2: Approach Shot

Let’s take the same drive from the first scenario. You hit a drive on a par 4 that ends up in the fairway, 115 yards from the hole. The PGA Tour scoring average from in the fairway 115 yards out is 2.825. You hit your approach shot on the green 10 feet from the hole. The PGA Tour scoring average from on the green 10 feet from the hole is 1.61 strokes.

(PGA Tour average from your approach) – (PGA Tour average for your putt) – 1 = strokes gained: approach-the-green

2.825 – 1.61 = 1.215 – 1 = .215 strokes gained: approach-the-green

Since you hit your approach shot to 10 feet you gained .213 strokes from the average PGA Tour player.

Scenario No. 3: Putting

Continuing the scenario from example scenario No. 2. You have a 10-foot putt left for birdie which you make.

(Your # of Putts) – (PGA Tour average from that distance) = strokes gained putting

1 putt – 1.61 = .61 strokes gained putting

Since you made that 10-foot putt you gained .61 strokes from the average PGA Tour player.

Scenario No. 4: Total for the hole:

To calculate strokes gained total use the formula below:

Strokes gained off-the-tee + Strokes gained approach-the-green + strokes gained around-the-green + strokes gained putting= strokes gained total

0.275+.215+0+.61=1.1 Total Strokes Gained on that hole

This makes sense because the PGA Tour average for the hole was 4.1 and you made a 3.

Definitions of Strokes Gained Statistics

  • Strokes gained: off-the-tee: Measures player performance off the tee on all par 4s and par 5s. This statistic looks at how much better or worse a player’s drive is then the average PGA Tour player.
  • Strokes gained: approach-the-green: Measures player performance on approach shots and other shots that are NOT included in strokes gained: around-the-green and strokes gained: putting. It does include tee shots on par 3s.
  • Strokes gained: around-the-green: Measures player performance on any shot within 30 yards of the edge of the green without measuring putting.
  • Strokes gained: putting: Measures how many strokes a player gains (or loses) on the greens compared to PGA Tour average.
  • Strokes gained: tee-to-green:  Strokes gained: off-the-tee + strokes gained: approach-the-green + strokes gained: around-the-green
  • Strokes gained: total: Strokes gained: off-the-tee + strokes gained: approach-the-green + strokes gained: around-the-green + strokes gained: putting
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Trey is a recent University of Michigan graduate where he studied Information Analysis. He is a Sports and Culture Writer who specializes in Golf. If you have any inquiries or questions you can reach him at (treypezzetti@gmail.com).

16 Comments

16 Comments

  1. Dtrain

    Sep 4, 2018 at 12:55 pm

    All approach shots 10 feet from the hole aren’t created equal.

  2. Justin Dohnson

    Sep 4, 2018 at 12:53 pm

    The comment section, a quick reminder of people’s inability to comprehend what they read.

  3. Tom

    Sep 3, 2018 at 8:21 pm

    All you need to understand is the lowest score in golf wins….the rest of stats is unnecessary.

    • Ron

      Sep 4, 2018 at 12:14 pm

      If you understand the concept of Strokes Gained (which based on all the prior comments it seems most do not) it can be very valuable teaching you which areas are costing you strokes in relation to your peers.

  4. Greg B.

    Sep 3, 2018 at 9:33 am

    I have read similar explanations before this one and none of them register with me. It seems to me that it still all comes down to putting. The driver example given is meaningless if you cannot capitalize on it. Same with approach/around the green. I think Broadie should have stopped with the putting stat and left it at that.

    • Kevin

      Sep 3, 2018 at 11:38 am

      Read Mark book, “Every Shot Counts”. It shows that putting isn’t as important for the good players as you think. Wants really more important is being able to drive it far and straighish and being to hit iron shots close to the hole. Look at player like Dustin Johnson who in the past his putting stroke has held him back (this year he is putting really good for him), yet he still won 4 times on tour last year. Why, well he is one the longest on tour and he hit his irons and wedge really tight, his birdie putts are going to be alot easier to make than say a Kevin Kisner. Kisner is one of the better putters on tour, though he is outside the top 150 in both driving and iron play; perfect examples for why he struggling this year; sure he is making alot putts, though those putts are for par, unlike DJ who putts are for birdie. Look Brandt Snedcker, he too has been struggling with his iron play all year, though still being able to putt. The stat that stood out the most when he cruise to a win 3 weeks ago was his ball striking. Sure you cant Putt awful and still win (Vijay did use to do it and Hideki does it know), but it is becoming very difficult to win on tour when you are not hitting iron shots close to the hole. Look at Jason Day, he had 9 wins between 15-16 despite being one the worst iron players on tour, he though was one the best putters from outside 25 feet. Though eventually you can’t keep making those putts, the pressure is going to weigh you down eventually. That is why he has only won since those two great season.

      • Greg B.

        Sep 4, 2018 at 1:28 pm

        Back in the ’80s/early ’90s there was a PGA Tour player named Tim Simpson who was a legendary ball-striker. Comparisons to the all-time greats were happening. But his putting skills were absolutely woeful, to the point where jokes were made about it.

        When lowest score wins, it all comes down to putting/short game. The rest is an exercise that may be useful to help PGA Tour players work on their weak spots but that is about all it is good for. Strokes gained is getting undue attention as a useful yardstick.

  5. DMG

    Sep 3, 2018 at 9:20 am

    Your Scenario #3 Putting equation doesn’t work for me. If I took 3 putts to finish from 10 feet strokes gained would = 2.61. What am I missing?

    • Bob

      Sep 3, 2018 at 9:15 pm

      The number should read -.61. With your scenario the number should be +1.39. So you were +1.39 from that distance. You want a negative number.

      • Steve

        Apr 12, 2019 at 2:32 am

        No.. this is wrong. It’s strokes GAINED. You don’t want a negative number.

        Scenario 3 is incorrect because the author wrote it backwards. It should be 1.61 – 1 for the gain of .61 strokes.

  6. Frankie

    Sep 2, 2018 at 11:01 pm

    This is such an unrealistic example for the average golfer, they are never going to play a 450 yard par 4 and hit it 335 yards in the fairway and hit it to 10 feet from 115 yards afterwards, get out of here.

    • PG

      Sep 3, 2018 at 7:37 pm

      There aren’t stroked gained stats for average golfers; when is the last time you’ve seen shotlink out on the muni?

  7. dj

    Sep 2, 2018 at 8:48 pm

    Game Golf will calculate this for you.

  8. Andy G

    Sep 2, 2018 at 5:28 pm

    Trey,
    I believe the Strokes Gained Putting stat must help certain ball strikers more than others due to their approach shot skills. As an example, Rose, Day, Stenson will hit the right part of the green with his precise irons and their respective 20 foot putt is in a better (possibly easier) position than another player’s 20 foot putt. I think equating all 20 foot putts is where this stat is somewhat flawed or susceptible to its problems. It should factor in the speed and break to really determine what the average pro putter would do. I look at many of the past top 20 SGP players and see many players that you would not want putting for the win. I know this is subjective, but Rose, Day, and Stenson are great ball strikers that I feel their respective SGP stat being higher has ball striking influences due to them leaving the ball in the right place vs the less precise ball strikers. If you subjectively look at the list each year, you can see some really good examples of this. Please don’t take my comments overboard, I think the SGP stat is good, just not 100 % effective at evaluating putting skill (imo).

    • Johnny Penso

      Sep 2, 2018 at 7:20 pm

      I think what you’re missing is that it’s not meant to be an accurate statistic from shot to shot but in the aggregate. On a particular hole or putt, yes there will be all kinds of differences in lies, stances, ball position, green undulations etc. but over time, with enough data points, that will all even out as the variation is generally random in nature.

  9. PG

    Sep 2, 2018 at 12:35 pm

    Is there a place to find average strokes for approach and putt distance for scratch golfers? I loaned my copy of the book out…

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The Gear Dive WITB Edition: Ping Tour rep Kenton Oates talks Viktor Hovland

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In this WITB Edition of The Gear Dive, Johnny chats with Ping Tour rep Kenton Oates on the ins and outs of Puerto Rico Open Champion Viktor Hovland’s golf bag.

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

They also cover Jim Wells Putters and the legendary Ping Eye 2 wedge.

Viktor Hovland WITB

Driver: Ping G410 LST (9 degrees @ 8.5; flat standard, CG shifter in draw)
Shaft: Project X HZURDUS Black 6.5 (44.5 inches, D3 swing weight)

3-wood: TaylorMade M5 (15 degrees @ 14.5)
Shaft: Mitsubishi Tensei Blue AV 85 TX

Irons: Callaway X Forged UT (21 degrees), Ping i210 (4-PW)
Shafts: Graphite Design Tour AD DI-85 X Hybrid (21), KBS Tour 120 X (4-PW)

  • Standard length, .5 degrees flat, D2+

Wedges: Ping Glide 3.0 (50-SS, 56-SS @ 55, 60-TS)

  • 50SS (35.25 inches, 1-degree flat, D3, “Half Moon” Grind)
  • 56SS (35 inches, 1.5-degree flat, D3+)
  • 60TS (34.75 inches, 2-degrees flat, D4)

Shafts: KBS Tour-V 130 X

Putter: Ping PLD Prototype “Hovi”

  • 36″, 20-degree lie, 2.5-degree loft, stepped shaft

Ball: Titleist Pro V1

Grips: Golf Pride MCC White/Black 58R

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The Wedge Guy: Realistic expectations

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(Today’s post is one I actually wrote nearly eight years ago, but I’m using it to start a series about “thinking your way to better golf.” I hope you enjoy the next few weeks.)

One of the great regrets of my life is that I missed the fatherhood experience, never having had children of my own. As I get older, I find that I gravitate to the younger folks, and offer my help whenever I can, whether on the golf course, on the water fishing, or just life in general. One of my joys is working with younger kids on their golf. That includes instruction, of course, but what I think is more important for them in the developmental stages is to learn to manage
their expectations. Actually, we all could benefit from that bit of advice.

On Sunday, I had the joy of playing with the 16-year-old son of one of our partners at SCOR Golf. Kyle is a tremendously talented young man who I’ve worked with quite a bit, but he really hasn’t committed himself to golf yet. I’m talking about the kind of commitment that keeps him working hard at it as long as there is daylight. He might not ever get that, and that’s OK, but he hasn’t figured out yet that your expectations can only rise from your achievements, and not from your desires.

On a core level, Kyle has great strength but hasn’t learned to harness it yet. He wants to choose his clubs based on his maximum distance with that club—if everything falls exactly into place. Like most golfers, and especially young ones,
he’s enamored with the power game. When we play, I show him that throttling back and controlling the shot is much more reliable.

What I discovered Sunday is that Kyle has very unrealistic expectations about what a round of golf should really be like. He, like most of us, expects all the shots to be struck solidly and fly like he imagined. So I explained that he hasn’t
earned the right to have such expectations yet. His scores average around 90-95 and his best ever is an 85.

So, here’s my point (finally)

Kyle was off to a good start with three pars and two bogeys in his first five holes. He kind of “fat-pulled” a 4-iron approach on a 200-plus yard par three. His shot left him only 10-15 yards short and left of the green, but he wheeled around, dropped his club and expressed his disgust with the shot. And I got on him about it. “What’s wrong with that? It’s a difficult par-3 with a 20 mph crosswind and you are in good position to get up and down or at least make no worse than bogey on one of the hardest holes on the course.”

I went on to explain that he was only two pars away from tying his best round ever, and if he just played for bogeys – and stay excited—he would probably make twice that many or more. And I seemed to get through to him of the reality
of golf, or his golf at least. He stayed in the moment, with only a little more cajoling from me, and shot an 86—one shot off his best ever! And I MADE him congratulate himself on his accomplishments. Instead of focusing on those few
shots that were bad, and the 2-3 doubles he made, I told him to focus on the good that came out of that round.

So, here’s my point (or points) for managing your expectations, too.

  1. If you are a low single-digit player, you’ll still only hit 2-3 shots a round just like you wanted.
  2. If you play to a 12 or higher, any shot that keeps you in the game isn’t really all that bad.
  3. Regardless of your skill level, there is no such thing as a “birdie hole” when you are standing on the tee. A “birdie hole” can only be claimed when you have executed an approach to makeable putt range.
  4. If you are a 12-15 handicap player, you only need to make 3-6 pars to beat your handicap, as long as you don’t chop up any holes. Bogeys are good scores unless you regularly shoot in the 70s!

So, the next time you are on the golf course, try to set and manage realistic expectations. Your golf will be better for it, and you’ll have a ton more fun.

NOTE: I read a great article this morning by Geoff Ogilvy about the quality of golf being played on the PGA Tour. It reflects what I’ve often said about how the modern tour professional plays the game. Here it is.

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Mondays Off

Mondays Off: Does Viktor Hovland deserve a Masters invite for his win?

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Viktor Hovland won a side event in Puerto Rico against a limited field, so does he deserve the Masters invite? We can’t have a show without talking about Partick Reed. He got a huge win at the WGC Mexico and was it a revenge win against the media? Knudson was out on the range testing some new gear.

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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