News
USGA will restrict green-reading materials beginning in 2019
More than a year after announcing their concerns, the USGA and R&A are proposing regulations on green-reading materials/yardage books.
The governing bodies emphasized “the need for a player to read greens based on their own judgement” in a press release.
The regulations will be finalized in a published “interpretation” of Rule 4.3 (Use of Equipment) and adopted Jan. 1, 2019, following a six-week feedback period.
David Rickman, Executive Director – Governance at The R&A, said,
“We have looked carefully at the use of these green-reading materials and the extremely detailed information they provide and our view is that they tip the balance too far away from the essential skill and judgment required to read subtle slopes on the greens. It is important to be clear, however, that we still regard the use of yardage books and handwritten notes to be an entirely appropriate part of the game.”
Here are the key elements, per the USGA release.
Minimum Slope Indication Limit: A minimum slope indication limit of 4 percent (2.29 degrees) is proposed (this includes lines, arrows, numbers or any other indicators); this will have the effect of eliminating such indicators of slope from those areas of the putting green where the hole is most likely to be positioned (which tend to be cut on reasonably flat sections of the putting green with a degree of slope of less than 3.5 percent – or 2 degrees). This proposed limit also equates roughly with the amount of slope that is readily visible to the naked eye.
Maximum Scale Limit: A maximum scale of 3/8 inch to 5 yards (1:480) is proposed; this will limit the size in print form to a pocket-sized publication and has the effect of restricting the space for handwritten notes (also referenced below).
Indicative Information: General information that is included in traditional yardage books or course guides, such as basic illustrations that show the outline of the putting green and include indicative information like the tops of ridges or general slopes, will continue to be permitted.
Handwritten Notes: Handwritten notes will continue to be allowed, but such notes cannot be used to create either a direct copy or a facsimile (replica) of a detailed green map.
If you’d like to know what this theory might look like in practice, check out these illustrations from the USGA.
GolfWRX is on site this week at the Memorial Tournament, with both Alistair Cameron and Tour Photographer Greg Moore on the ground in Dublin, Ohio, where a strong field is assembled to pay homage to the Golden Bear.
In addition to WITB galleries, we’ve already been treated to an in-hand look at Tommy Fleetwood’s new TaylorMade Spider putters.
Check out links to all our photos below.
General Albums
WITB Albums
- Jason Day – WITB – 2026 The Memorial
- Chris Gotterup – WITB – 2026 The Memorial
- SungJae Im – WITB – 2026 The Memorial
Pullout Albums
- Jason Day’s 1off Payntr golf shoes – 2026 The Memorial
- JT Poston’s TaylorMade Spider – 2026 The Memorial
- Cameron putter – 2026 The Memorial
- Tommy Fleetwood’s TM Spider putters – 2026 The Memorial
- New Mitsubishi Chemical 1K Pro Orange shaft – 2026 The Memorial
Around the world, the golf wheel spun this final week in May of 2026. From New Jersey to Austria, with stops in Korea, Texas, and North Carolina (don’t let me route your next trip) the world’s finest put their golf games on display. There were three playoffs, some known commodities and some new talent. It was the sort of week that we hope to have at this point in the seasons. June and July afford double-digit major events, and perhaps, one of this week’s champions will use this success as a springboard to new heights. Time to run it all down, tech style, in this week’s Tour Tech Rundown.
Thanks to WITBHub, Today’s Golfer, GolfWRX, and Inside Tour Golf for initial research into equipment.
PGA Tour @ Charles Schwab Challenge: Heroic Henley denies Cole
Eric Cole did nearly everything that a fellow can do, to secure a first PGA Tour title. He stayed one shot clear of Ryder Cup player Ben Griffin. He kept US Open champion Gary Woodland and wunderkind Michael Brennan two shots distant. He posted 70 on day four to reach twelve under par. And then, Russell Henley revealed his Dr. Strange cloak. Henley made 47 feet of birdie putts on holes 16, 17, and 18, to jump from minus-nine to twelve-deep, and secured a spot in a playoff with Cole. The duo returned to the final tee, and put on a stripe show.
Both golfers found the fairway off the tee, and Henley improved on his regulation play with an approach to four feet. Cole did himself proud, tucking an iron to a dozen feet, but he was unable to convert the putt for three. Henley is one of the best putters on tour, and he proved it once more by draining a putt for a fourth consecutive birdie, and a sixth PGA Tour title. For Eric Cole, that first victory should come, and soon. He has done everything necessary to earn the chalice lift.
Henley’s Suitcase
- Driver: Titleist TSi3 at 10 degrees. Shaft: Project X HZRDUS Smoke Black 70g 6.5 TX
- Metal: Titleist TS3 at 16.5 degrees. Shaft: Project X HZRDUS Smoke Black 80 TX
- Hybrid: Titleist TSi2 at 21 degrees. Shaft: Mitsubishi MMT hybrid 100 TX
- Iron: Titleist T250 4-iron. Shaft: True Temper Dynamic Golf AMT Tour White X100
- Irons: Titleist T100 5-6 irons. Shaft: True Temper Dynamic Golf AMT Tour White X100
- Irons: Titleist T100 7-9 irons. Shaft: True Temper Dynamic Gold Tour Issue X100
- Wedges: Titleist Vokey Design SM11 at 48 and 50 degrees. Shaft: True Temper Dynamic Golf Tour Issue X100
- Wedges: Titleist Vokey Design SM11 at 54 and 60 degrees. Shaft: rue Temper Dynamic Golf Tour Issue S400
- Putter: Titleist Scotty Cameron T5 Tour Prototype
LPGA @ Shoprite LPGA: Welcome back, Celine!
Soo Bin Joo had her eyes on a maiden LPGA title. She held the lead after two rounds, then hit a red light at the intersection of can-I and how-To. Joo posted plus-two on day three in New Jersey, and dropped to a T4 finish, which was still a career-best for the young Korean golfer. Instead of a new face, a familiar face returned to the top of the podium.
Celine Boutier was the It Girl in 2023. She collected four victories, including a major title at Evian. Boutier reached world number one status, then simply faded into the background. No wins came her way over the next 30 months. On Sunday, she collected LPGA victory number seven, at the same trace as LPGA victory number two.
Day three saw Boutier manage the windswept Seaview Bay course with six birdies and a bogey. She was challenged in the end by Thailand’s Arpichaya Yubol, who signed for a 66 of her own. Yubol came up one shot shy of the top ladder rung. Finishing in third place at -7, two back of the winner, was Ireland’s Lauren Walsh.
Celine’s Suitcase
- Driver: PXG 0311 Black Ops Tour-1 at 9 degrees. Shaft: Graphite Design AD IZ-5
- Hybrid: PXG 0311 Black Ops at 19 and 22 degrees. Shaft: KBS Hybrid Prototype
- Hybrid: PXG 0311 Gen5.
- Iron: PXG 0311 P Gen 4 5-9 irons
- Wedge: PXG 0311 T Gen 4 PW
- Wedges: PXG 0311 Sugar Daddy II at 50, 54, 58 degrees
- Putter: Bettinardi Studio Stock 3 DASS
DP World Tour @ Austrian Alpine: KK? KK!
Kota Kaneko has a rhythmic name. It has strong vowels and a run of voiceless stops in its crunchy K sounds. On Sunday in Austria, Kaneko put a stop to a challenge from Portugal’s Ricardo Gouveia and everyone else, and claimed a first-ever title on the DP World Tour. Gouveia did well to reach 16-under par over four days, but Kaneko held firm, two shots in the clear.
Davis Bryant of the USA also forged a strong challenge for the win. He ended in a tie with Gouveia for second place. Kaneko began and finished his final round in a bit of a malaise, but he caught fire midway through. Birdies at 10, 12, and 13 provided the necessary cushion to cruise to the finish line without breaking a serious sweat.
Kaneko’s Suitcase
- Driver: Ping Max G440
- Metals: TaylorMade Qi4D at 15, 16.5, 21, and 24 degrees
- Irons: TaylorMade P760 5 and 6 irons
- Irons: TaylorMade P7TW 7-9 irons
- Wedges: Titleist Vokey Design at 46, 52, 56, and 60 degrees
- Putter: Odyssey Ai-One Cruiser Arm Lock #7
Korn Ferry Tour @ UNC Health Championship: Improbably Alvaro
Alvaro Ortiz may have had a bit of scare on the outward nine on Sunday, but he came through in clutch fashion in the end. Ortiz began the day bogey-double, and added another double bogey at the 11th hole. He was mired in a downward trend, spiraling away from the top of the leader’s board. Ortiz found hope at the 14th, where his first birdie of the day tumbled home. Inspired, he closed with birdies and 17 and 18 to catch Ross Steelman at 10-under par, and the duo returned to the 18th deck for overtime.
The extra session concluded in brief time. Ortiz, buoyed by his newly-retrieved confidence, hit the fairway with driver, then approached to six feet and drained the putt. Gobsmacked, Steelman could do little more than smile and applaud, as his run at the top came to a close. The victory was the first for Ortiz on the KFT, and will implant him squarely in the chase for a PGA Tour promotion.
Alvaro’s Suitcase
- Driver: Ping G430 MAX driver at 9 degrees loft
- Metal: Ping G430 MAX 3W
- Iron: Ping iDi Driving Iron
- Irons: Ping Blueprint S irons
- Wedges
- Putter: Scottsdale TR Piper C
A party on the green!
Alvaro’s time comes in Raleigh with his first win @UNCHealthChamp ? pic.twitter.com/2dmtZdbSzk
— Korn Ferry Tour (@KornFerryTour) May 31, 2026
LIV @ Korea: Me llamo Joaquin
Chile’s Joaquin Niemann had been away from the LIV winner’s circle throughout all of 2026. This week in Korea, he reminded us that he is still a force to consider. Niemann chased down Taylor Gooch over the closing holes at Asiad Country Club, then claimed victory with a hole-one birdie in extra time. Bryson DeChambeau claimed solo third, one shot in arrears at minus-eleven. Dustin Johnson finished on fourth, one putt farther back.
Niemann’s Suitcase
- Driver: Ping 440 LST
- Metal: Ping G440 Max at 15 degrees
- Metal: Ping G425 Max at 21 degrees
- Hybrid: Ping G430 at 25 degrees
- Irons: Ping Blueprint S 5 through PW
- Wedges: Ping S159 at 52, 56, and 60 degrees
- Putter: Ping PLD Anser
Driver: Titleist TSi3 (10 degrees)
Shaft: Project X HZRDUS Smoke Black 70 6.5 TX
3-wood: Titleist TS3 (16.5 degrees)
Shaft: Project X HZRDUS Smoke Black 80 TX
7-wood: Titleist GTS3 (21 degrees)
Shaft: Project X Denali Black 80 TX
Irons: Titleist T250 (4), Titleist T100 (5-9)
Shafts: True Temper Dynamic Gold AMT (4-6), True Temper Dynamic Gold Tour Issue S400 (7-9)
Wedges: Titleist Vokey Design SM11 (48-10F @47, 50-08F @51, 54-10S @55, 60-04T)
Shafts: True Temper Dynamic Gold Tour Issue X100 (48), S400 (47)
Putter: Scotty Cameron Phantom X5 Tour Prototype
Grips: Golf Pride Tour Velvet
Ball: Titleist Pro V1x
Aaron Rai’s winning WITB: 2026 PGA Championship
Russell Henley’s winning WITB: 2026 Charles Schwab Challenge
Photos from the 2026 CJ Cup Byron Nelson
CJ Cup Byron Nelson Tour Report: Koepka and Kim’s newest putters finally get hot
Charles Schwab Challenge Tour Report: MacIntyre, Åberg and Spaun all switch putters, TaylorMade launches new Spider
Details on J.J. Spaun’s surprise putter switch
GolfWRX Launch Report: 2026 Titleist GTS drivers
Photos from the 2026 Charles Schwab Challenge
PGA Championship Tour Report: Fitzpatrick, Koepka among big-name putter switches for Aronimink
Photos from the ShopRite LPGA
Maria Torres WITB 2026 (June)
Driver: Ping G440 LST (9 degrees) Shaft: Accra TourZ Green 5-M4 3-wood: Ping G440 Max (15 degrees) Shaft: Accra TourZ Green 6-M4 5-wood: Ping G440...
Eric Cole WITB 2026 (June)
Driver: PXG Lightning Tour Max (9 degrees) Shaft: Project X Titan Yellow 70 TX 3-wood: TaylorMade Qi4D (15 degrees) Shaft:...
Si Woo Kim WITB 2026 (May)
Driver: Callaway Quantum Triple Diamond (8.5 degrees) Shaft: Fujikura Ventus Black 6 X Mini driver: Callaway Paradym Ai Smoke Mini...
Wyndham Clark’s winning WITB: 2026 CJ Cup Byron Nelson
Driver: TaylorMade Qi4D (10.5 degrees) Shaft: Project X Titan Yellow 60 TX 3-wood: TaylorMade Qi4D Tour (15 degrees) Shaft: Project...
Tee-Bone
Aug 2, 2018 at 1:48 pm
At this point, the USGA is completely dysfunctional. Green maps do not read the green for you by indicating the correct starting line. That must still be done by the player. Green maps do not remove that skill. So I ask…WHY?
david
Aug 2, 2018 at 6:41 am
Putting a line on a golf ball to putt in my opinion is cheating; it runs contrary to the spirit of the game. We don’t allow players to use alignment rods on the fairways to line up a shot, so why do we allow a player to use a line? And it slows play immensely. I’m all for banning yardage books completely, green reading is a skill; this is like allowing calculators for students in a math test.
Frankie
Aug 2, 2018 at 7:07 pm
Would you rather take a trigonometry test with abnormal angles (not 45, 90, 135, 180, etc.) and have to figure out approximate sin, cos, and tan for those angles without a calculator? Hmmmm….
Joe
Aug 1, 2018 at 6:35 pm
The game of golf should be a game of athleticism and judgement, not a game for physic majors. KISS = Keep It Simple Stupid.
GolfDonkey
Aug 1, 2018 at 5:49 pm
This is all so dumb. No need to ban the books
Tom54
Aug 1, 2018 at 2:06 pm
I believe the green reading books just adds another layer of preparation for a putt. By the time they consult the book,visually look at all angles,precisely line it up with the line on the ball and then hit the putt a lot of time has gone by. I agree that laser finders should be allowed. Last player to hit in group from fairway should already have yardage when it’s his turn. How many times has the camera gone to that player and they’re still looking at the book? I know they are playing for lots of money but Rodney said it best with “Let’s go while we’re young”
Tartan Golf Travel
Aug 1, 2018 at 1:21 pm
Not sure why they didn’t ban the books entirely but outside of that I like the rule. Green reading is a skill. Give the guys rangefinders….yardage is common knowledge. The most boring part of watching golf is when the caddie and they player are both just looking at a book!
Ray Neese
Aug 1, 2018 at 10:13 pm
They should ban caddies from reading as well and lining up shots. Even though they move before a player hits,lining up is part of the skill of golf.
Jack Nash
Aug 1, 2018 at 12:57 pm
It’s about time they did this. Should have been nipped in the bud right off. Green reading is an art, and how many players have been aided just like the long & belly putters.
Funkaholic
Aug 1, 2018 at 10:13 am
I wonder how many strokes I could shave if I had this kind of information, conditions and time on my local public course.
Jack Nash
Aug 1, 2018 at 12:55 pm
I think there’s even golf apps for ur phone out now.
Funkaholic
Aug 1, 2018 at 1:19 pm
Yes but, I don’t have the time to stand over my ball 5 minutes before every shot with a personal adviser helping me make my decisions on a perfectly manicured course. The Pros are spoiled.
OninTwoDowninOne
Aug 2, 2018 at 3:42 am
Yes, I agree they are spoiled. Play on well conditioned courses, follow perfect weather conditions, a spotter every shot, never lose a ball, an adviser for every shot, get relief from impossible situations just by asking, Ball deflectors in play, food on the course.
doofer
Aug 1, 2018 at 2:04 am
Aw shucks… you can goose up the ball but you can’t use green reading stuff?!!
CrashTestDummy
Jul 31, 2018 at 11:39 pm
I like this change. Puts more responsibility on the player to setup their own shots. Also, like that they disallowed caddies lining up the player before hitting. The responsibility should be on the player to read a putt and line themselves up.
Bruce Ferguson
Jul 31, 2018 at 7:08 pm
At least you don’t have to worry about green-reading aids at the US Open.
Balls just roll off the greens, anyway . . .
Travis
Jul 31, 2018 at 7:01 pm
This is making the green reading books so complicated… and what, are they going to search every green reading book every round?!
Why not just ban them entirely?
Yet another way the USGA makes this whole situation WAY more complicated than it has to be… Mike Davis is a total tard.
DB
Aug 1, 2018 at 8:33 am
I also tend to think Mike Davis is a nerd who should be shoved back into a locker, but… this is a welcome change. Lots of people have had issues with the growing complexity of these books.
There are restrictions on clubs and various other things – and nobody has to inspect every club every round. Everyone knows the rules and they follow the rules. I think it’s pretty clear. You can have a green chart showing ridges and false-fronts, general direction, etc. But once you start mapping it out with precise slope measurements you’ve broken the rule.
Wiger Toods
Jul 31, 2018 at 6:58 pm
It isn’t about the data. It’s about slow play.
Anders Loch
Aug 1, 2018 at 10:17 am
Green books actually speed up play by allowing one to make a read faster.
Jesper Pickering
Jul 31, 2018 at 5:52 pm
They should just ban any lines on the balls. It takes way too much time to align line on ball, and it removes the skills to properly setup and aim. It’s fine by me with the measurements/green books and that not. You have the same insight if it is your home course
ChipNRun
Jul 31, 2018 at 2:05 pm
I served as marshal on the No. 14 for the 2013 Senior PGA at Bellerive CC.
During a practice round, one player finished the hole and broke out some real hardware. He had a carpenter’s level, a 12-inch wooden ruler and a small looseleaf notebook. He took about six level readings around each of the proposed cup positions, rolled the ball around by hand, and furiously took notes.
After about five minutes, his playing partner said, “Hey, the next group wants to hit in…”
End of sad story: He failed to make 36-hole cut by five strokes.
—————-
* Yes, Bellerive is hosting the 100th PGA Championship in a few days.
Tom
Jul 31, 2018 at 12:33 pm
What if the player makes his own version of a green reading book, like the yardage books they currently are allowed to use? Will the USGA subcontract TSA agents to body cavity search players?
Instead, the USGA should put time expectations in place and severely penalize(disqualify)those who can’t play 18 holes in 4 hours. It’s not that complicated.
3puttPar
Jul 31, 2018 at 2:09 pm
A tournament round in 4 hours has never happened, and will never happen. This unreal expectation of putting a time limit on golf has become ridiculous.
If you cant set aside ample time to play or watch golf, find something else to do.
Joe
Aug 1, 2018 at 12:59 pm
#ShotClockMasters
MJB-Golf
Aug 2, 2018 at 6:48 am
True….Fastest 3-ball round on Thursday 3h 48min. Average time cut off each group was recorded to 33min. Did we find it stressful? No, not even the slow players. But we had to get on with what we are supposed to do out there, check yardage, wind direction, make a decision, grove it in and pull the trigger. No time for second and third thoughts about every single decision made. Great format and equal time for all players making it a fair tournament. “Thumbs Up” 🙂
PT
Aug 2, 2018 at 12:50 pm
Did you walk? Use a rangefinder? Or that silly thing on your cart? And were millions of dollars and FedEx Cup points, and qualification status at stake?
Trying walking off every yardage next time and walk that course. And then see if you can still shoot your own course record next time
Greg V
Jul 31, 2018 at 12:21 pm
Will the makers of these green reading books sue the USGA?
I saw a phone app that had the same technology. They must be hugely disappointed.
GFan
Jul 31, 2018 at 11:32 am
Fantastic news from the USGA + R&A. If they could also prohibit the caddies from helping to read greens than we would see some even more interesting results from those professional players.
Dave
Jul 31, 2018 at 1:18 pm
The caddie is part of the player…. read the rule book.