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Opinion & Analysis

Carl Pettersson And The Long Driver

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One of the interesting cases of 2012 was Carl Pettersson. Pettersson switched from a standard-length driver of about 45 inches to a 47-inch long driver. The idea, according to Pettersson, was to improve his launch conditions and to hit the ball further.

According to fellow GolfWRX Featured Writer, Tom Wishon, the average length of a driver on the PGA Tour is 44.5 inches. Wishon said he uses a golfer’s body dimensions, such as height and wrist-to-floor measurement, to properly fit the length of the driver for a golfer. We know that Bubba Watson used a 44.75-inch driver and is listed at 6-foot 3-inches tall. While I do not know Pettersson’s measurements, he is listed at 5-feet 11-inches tall on the PGA Tour’s website. I feel it is safe to say that a 47-inch driver is an abnormally long driver for him and not what most club fitters would recommend fitting him into.

The concept of a longer driver shaft increasing distance off the tee is not new. In fact, long drive competitors almost exclusively use longer driver shafts in order to hit the ball further. Part of the reason for the ball going further has to do how the longer shaft alters the geometry of the golf swing. The other part is physics. All things being equal, the longer the driver shaft the lighter the club’s static weight will be.

Here’s a look at Pettersson’s metrics with regards to impact conditions and distance:

Pettersson’s clubhead speed did increase. In fact, he had the 3rd highest percentage increase of clubhead speed from 2011 on Tour. He also jumped up 51 spots in the PGA Tour’s Driving Distance statistic. Ironically, his launch angle was actually lower in 2012 and the difference in “Max Height” was rather negligible. But in the end, if Pettersson was looking to increase his distance, that goal was accomplished. But hitting it far is only part of the equation to being an effective driver off the tee. The golfer must also hit it accurately and precisely.

I measure accuracy for Tour players based on their Fairway Percentage. And precision is measured by the metric Average Distance to the Edge of the Fairway on tee shots that miss the fairway. Here is a comparison of those metrics for Pettersson in 2011 and 2012.

 

 

While Pettersson increased his distance, his accuracy and precision declined. And the decline in accuracy and precision was bigger than his increase in power and thus he was less effective off the tee in 2012 despite hitting it further.

Part of what is unique about Pettersson’s case is that since I have been calculating Driving Effectiveness on Tour, the numbers show that Distance and Average Distance to the Edge of the Fairway have a greater influence on a golfer’s success on Tour than Fairway Percentage. In Pettersson’s case, the decline in Average Distance to the Edge of the Fairway is more than acceptable given his increase in distance. The reason for him being less effective off the tee in 2012 is that his fairway percentage dropped too much. If Pettersson could have managed to hit 60 percent of his fairways, a reasonable drop given his distance increase, he would have been more effective off the tee than he was in 2011.

Petterson made $3,538,656 in 2012 compared to $1,540,723 in 2011. I think these metrics give a little better description of why he was more successful financially in 2012 despite being less effective off the tee.

There are a few things that stand out, particularly Pettersson’s Birdie Zone, Safe Zone and Short Game Play. Was that enough to affect his scoring?

Again, we get results that we do not quite expect. Despite hitting it further off the tee, Pettersson was not making the birdies like he was in 2011. Instead, his ability to avoid bogeys improved.

The improved Short Game Play is a big reason for it. But, how does that explain his regression in Safe Zone Play? One look at Pettersson’s attempts per round gives us more answers.

While his Safe Zone play got worse and his Danger Zone play was roughly the same, Pettersson lowered his attempts per round from each Zone. This offset the differences in performance from those areas. Along with his much improved Short Game play, he was then able to make a noticeable improvement at his Bogey Avoidance Rate.

Lastly, his improved distance off the tee did not help an area that most people think automatically improves as the golfer hits it longer.

I believe that given the evidence, the longer driver was not more beneficial than the driver Pettersson was using in 2011. His improved performance in Adjusted Scoring Average and Earnings was mostly due to improved play from shots around the green, Birdie Zone play and having less shots per round from the Safe and Danger Zones. His longer driving off the tee did not even help his play on par-5’s, nor did it allow him to be able to go for par-5’s in two shots more often. And it is very possible that the longer driver may work against Pettersson in 2013.

Click here for more discussion in the “Tour Talk” forum. 

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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, 2017 Pro Golf Synopsis; the Moneyball Approach to the Game of Golf. He can be reached at ProGolfSynopsis@yahoo.com or on Twitter @Richie3Jack. GolfWRX Writer of the Month: March 2014 Purchase 2017 Pro Golf Synopsis E-book for $10

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Opinion & Analysis

An early look at the potential U.S. Ryder Cup Team

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With the Masters and the Players Championship complete, I wanted to examine the statistics of the current leaders in Ryder Cup Points for the U.S. Team. Over the history of the Ryder Cup, the U.S. Team has relied on pairings that were friends and practice-round companions instead of pairing players that were more compatible from a statistical standpoint. This has led to disappointing performances from the U.S. Team and top players such as Jim Furyk performing poorly at the Ryder Cup, as he is ill-suited for the Fourball format.

After a disastrous 2014 Ryder Cup where the U.S. Team lost by a score of 16.5-11.5, the U.S. decided to use a more statistical approach to Ryder Cup play. According to my calculations, the 2016 U.S. Team’s pairings were the closest to optimal that the U.S. Team has compiled in the last seven Ryder Cups. And not surprisingly, the U.S. Team won 17-11 over the Europeans.

Since there are several months to go before the Ryder Cup, I won’t get too much into potential pairings in this article. Instead, I will focus more on the current games of top-12 players in U.S. Ryder Cup Points Standings and how that translates to Ryder Cup performance.

About the Ryder Cup Format

In the Ryder Cup, there is the Foursome format (alternate shot) and the Fourball format (best score). There are distinctly different metrics in the game that correlate to quality performers in each format.

In the Foursome format, short game around the green performance is usually critical. In a typical stroke play event such as The Players Championship, short game around the green performance usually has a much smaller impact on player’s performance. But in a match play, alternate-shot format the opposite has been true. My conclusion is that with the alternate-shot format, more greens in regulation are likely to be missed. The team that can save par and extend holes is usually likely to come out on top. The European team has mostly dominated the U.S. team over the past 20 years in the Foursome format, and the European teams typically are stronger with their short game around the green.

Other factors involved with Foursome play are Red Zone Performance (shots from 175-225 yards) and being able to pair the right players together based on how they each play off the tee and with their approach shots from the rough. For example, a pairing of Phil Mickelson (who misses a lot of fairways) and Zach Johnson (who is not very good from the rough) would likely be a poor pairing.

In the Fourball format (lowest score), the best performers are high birdie makers and players that perform well on the par-4s, par-5s, and par-3s. Bubba Watson makes a lot of birdies and plays the par-4s and par-5s well, thus making him a good candidate for the Fourball format. The only issue with Bubba in the past is he has occasionally struggled on the par-3s. That can be resolved by pairing him with a player who makes a lot of birdies and is a strong performer on the par-3s. The reason for Jim Furyk’s struggles in the Fourball format is that he does not make a lot of birdies and is a merely average performer on the par-5s.

Note: All rankings below are based out of 209 golfers.

1. Patrick Reed

In the past, it has been difficult to get an accurate depiction of Reed’s game. He was notorious for either getting into contention or blowing up if he wasn’t in contention after the first round. He is now far better at avoiding those blowup rounds and remaining competitive regardless of how he well he performs at the beginning of the tournament. His iron play has been excellent, and since he is good on approach shots from the rough, short game around the green and he makes a lot of birdies and plays the par-4s and par-5s well, he should continue to be a great competitor in the Ryder Cup format. Given his inability to find the fairway off the tee, however, I would recommend pairing him with a quality performer from the rough in the alternate shot format.

2. Justin Thomas

On paper, Thomas should be Team USA’s toughest competitor as he has little in the way of holes in his game. He drives it great, hits his irons well from every distance, has a superb short game and can putt. He also makes a ton of birdies, plays every type of hole well and rarely makes bogeys. Like Reed, it would be advisable to pair him with a player that is a quality performer from the rough in the alternate shot format.

3. Dustin Johnson

DJ is the second-strongest performer on paper. The only thing that currently separates Justin Thomas from DJ is their Red Zone play. DJ has typically been a world-class performer from the Red Zone, however, and the data suggests that his ranking from the Red Zone should rapidly improve. He struck it well from the Red Zone in his last two events at Harbour Town Golf Links and TPC Sawgrass. And with his putting performance this season, he could make for a great competitor in this year’s Ryder Cup.

4. Jordan Spieth

Spieth has the metrics to be a strong Ryder Cup performer, as he strikes the ball well with his driver and his irons while having a superb short game around the green. His only weakness in the Fourball format is his performance on the par-3s, but that is due to his inability to make putts from 15-25 feet (198th). That is the crux of the situation for Spieth; can he get his old putting form back?

A look at previous great putters on Tour that inexplicably struggled with their putter shows that Spieth is going about his putting woes the correct way. He’s not making equipment or wholesale changes to his putting stroke. He is continuing to work with what made him a great putter just like Jason Day did last year when he inexplicably struggled with the putter early in the season… and then turned it around and regained his old putting form.

The question is, how long will it take for Spieth to regain his old form? Typically, players like Spieth that have a dramatic drop-off in their putting take about a year to regain their old form. He may not regain that form by the time the Ryder Cup takes place. If he does, Team USA is very strong with its top-4 points earners.

5. Bubba Watson

Bubba is off to a strong enough year to make the U.S. Ryder Cup Team, but the best bet for him is to stick to the Fourball format given his struggles around the green. Watson’s performance on the par-5s has not exactly been remarkable, but typically he’s one of the very best in the world on par-5s and can make a ton of birdies.

6. Rickie Fowler

Fowler has not been as strong in some areas of the game such as Red Zone, shots from the rough and putting as he has been in recent years. That makes him a little less appealing in the alternate shot format, but he still has a solid foundation to be a quality contributor in either format. The upside is if Rickie gets back to his old form with the putter and from the Red Zone, he should be a top-notch Ryder Cup performer because he is well suited to perform in either team format. At this time, he would be best suited to play with an accurate driver and very good performer around the green (i.e. Matt Kuchar) in the alternate shot format.

7. Brooks Koepka

There currently is not enough data on Koepka due to his wrist injury he suffered early in the season. Koepka is arguably the best bomber in the world who is also a great putter and a solid performer from the Red Zone. The main issue for Koepka has been his short game performance around the green. That would typically make for a weak partner in the alternate shot format, but Koepka was spectacular in the 2016 Ryder Cup. His combination of length and putting may make him a formidable Ryder Cup performer for years to come.

8. Phil Mickelson

As a statistical analyst for golf, I never quite know what I’m going to get from Lefty. This season Lefty has putted superbly, but his performance around the green has left a lot to be desired.

In recent Ryder Cups, he has been a quality performer in both the Foursome and Fourball formats. His recent success in the alternate shot format makes him a mandatory candidate, however, his inability to find the fairway means he would need a partner who is very good from the rough. The data suggests that his performance around the green should get closer to his old form as the season goes along.

9. Webb Simpson

Like Mickelson, it’s always a surprise as to what the strengths and weaknesses of Simpson’s game will be by the end of the season. Typically, he’s been a decent driver of the ball that is often a superb iron player and short game performer. With the anchoring ban, he has struggled with the putter up to this season. Lately, he has been an incredible putter that is struggling a bit with the irons.

Most of Simpson’s struggles with the irons have been from the rough, so a partner who finds a lot of fairways off the tee could be an excellent pairing in the foursome format with Simpson.

10. Matt Kuchar

Kuchar could be a very critical player for Team USA down the stretch. There are potential players on the team that could be valuable in the alternate shot format if they can find a teammate to find fairways off the tee to make up for their struggles on approach shots from the rough. Historically, Kuchar has been the most accurate off the tee of the players mentioned thus far.

This season, however, Kuchar has been underwhelming in his ability to find the fairway. The next most-accurate drivers of the ball that are near the top-12 in Ryder Cup points are Brian Harman, Bryson DeChambeau, Kevin Kisner and Andrew Landry, and none of them have nearly the experience in the Ryder Cup as Kuchar has. If Kuchar continues to miss fairways, his chances of making the team are not good unless he’s a Captain’s pick. If he cannot find the fairway, he has little-projected value as a member of the team. He is not making a lot of birdies, and his struggles on the par-3s and does not make him a favorable teammate in the Fourball format either.

11. Brian Harman

Harman’s value is that he has fairly decent Fourball metrics and his accuracy off the tee, putting, and iron play can work well with players like Fowler, Simpson, and Kuchar in the alternate shot format.

Harman has not performed that well from around the green using the Strokes Gained methodology, however; he ranks 15th on shots from 10-20 yards. I placed that metric in there as strokes gained takes into account all shots from less than 30 yards, but 10-20 yards is the most common distance range from which scrambling opportunities occur on Tour. Thus, Harman is an excellent performer from 10-20 yards and is only losing strokes around the green due to poor performance from 20-30 yards, and those shots occur less frequently on Tour. His struggles from 20-30 yards would also explain why his par-5 performance is roughly average, as that is the distance players typically finish from the hole when they go for par-5s in two and do not make the green.

And even though Harman is not very long off the tee (147th in Measured Driving Distance), he is a quality performer from the rough and thus he does not have to be tethered to another short-hitting, accurate driver in the alternate shot format.

12. Bryson DeChambeau

Dechambeau makes for a solid Ryder Cup candidate, as he has no outstanding weaknesses in his game this season as he appears to have rid himself of the putting woes that have hurt him in the past. I think he is better suited for the Fourball format, however, given how many birdies he makes. Pair him with a strong performer on the par-3s like Rickie Fowler or Phil Mickelson and it would make a very formidable duo in that format.

A pairing with Mickelson in the Fourball format would be intriguing given DeChambeau’s excellent driving. DeChambeau could hit first and — if he continues to drive it superbly — that would free up Mickelson to not worry so much about his woeful driving and focus more on making birdies. Perhaps a Fourball pairing with Bubba would make for a situation where DeChambeau could tee off first and pipe his drive, and then give Bubba a free rip to hit it as far as he possibly can and give them a sizeable advantage over their opponents.

31. Tiger Woods

I know I said I was only going to look at the top-12 players in Ryder Cup points, but the readers would inevitably ask about Tiger anyway. Furthermore, Tiger is an intriguing candidate for the team given his current game.

Tiger has struggled in both the Foursome and Fourball format. He seems to not play that great in alternate shot. In Fourball, it appears that he plays well by himself, but he is often let down by his teammates. The Europeans have always gunned for Tiger in the Ryder Cup, and it takes a special type of teammate to deal with the hysteria of having Tiger as their partner.

There are the makings of a very good alternate shot partner with Tiger, as his iron play and putting are still really good and his short game has been incredible this season. In the Fourball format, it would be advisable to find a strong par-5 performer, as Tiger’s performance on the par-5s has not been outstanding thus far. Having said that, I could see three excellent partners for Tiger in either format.

Patrick Reed has the numbers to be compatible with Tiger’s game, and he also has the track record of living up to the moment in the Ryder Cup. Dustin Johnson is can make up for Tiger’s possible big misses off the tee and can overpower a course with Tiger. And Phil Mickelson, whose game is compatible with Tiger’s, and could provide a symbol of the old guard working together to beat the Europeans.

There are certainly a lot of compelling possible pairings for Team USA, and there is still a long way to go before we start to see what pairings are available. The European Team looks like one of the strongest in years, and with all of the potential storylines for the 2018 Ryder Cup, it could be one of the greatest Ryder Cups of all time.

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Podcasts

Gear Dive: How Tiger Woods used to adjust his clubs based on swing changes

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Ben Giunta, a former Nike Tour Rep and now owner of the TheTourVan.com, joins host Johnny Wunder and TXG’s Ian Fraser on this episode of The Gear Dive. Ben discusses working in-depth with Nike Athletes before the company stopped producing hard goods. He has some fantastic intel on TW and the setup of his sticks (around the 14-minute mark). They also discuss Ben’s new endeavor.

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

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Opinion & Analysis

The 2018 NCAA Men’s National Championship: By the Numbers

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For the 2018 NCAA Men’s Championship, 156 participants (30 teams of five, and six individuals) will collect at Karsten Creek Golf Club in Stillwater, Oklahoma on May 25-30 to determine the 2018 NCAA Individual Champion and the NCAA Team champion.

There will be three days of stroke play on Friday through Sunday (54 holes). From there, 15 teams and nine individuals advance to a final day of stroke play on Monday. That will determine the eight teams who will advance to match play, and the individual 72-hole stroke play champion. Match play format on Tuesday and Wednesday will then determine the national team champion.

Who will win? Well, let’s look at the numbers from the NCAA Men’s Championships in the past 9 years (when they began playing match play as part of the national title).

Average winning score for individual stroke play

  • For 3 rounds of stroke play — 832 strokes (avg. 69.3 per golfer)
  • For 4 rounds of stroke play — 1137 strokes (avg. 71.06 per golfer)

Number of No. 1 seeds to win championship: 0

Average match play seed of eventual winner: 4.5

Where the winners have come from

  • 44 percent of winners (4 out of 9) are from the SEC: Texas AM (2009), Alabama (2013, 2014) and LSU (2015)
  • 22 percent of winners (2 out of 9) are from the Big 12: Texas (2012), Oklahoma (2017)
  • 22 percent of winners (2 out of 9) are from Augusta, GA: August State (2010, 2011)
  • 11 percent of winners (1 out of 9) are from the PAC 12: Oregon (2016)
  • 11 percent of the match play field has historically come from mid-major teams

Mid-Majors that have Qualified for Match Play

  • August State (2010, 2011)
  • Kent State (2012)
  • San Diego State (2012)
  • New Mexico University (2013)
  • SMU (2014)
  • UNLV (2017)

Mid Majors with 4+ Appearances in the NCAA National Championship 

  • UCF (2009, 2012, 2013, 2017, 2018)
  • Kent State (2010, 201, 2013, 2017, 2018)
  • North Florida (2010, 2012, 2013, 2018)

So with facts in hand, let’s hear your opinion GolfWRX readers… who’s going to be your team champion for 2018?

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