Two major champions make putter changes before Open Championship

There are two solid tournaments going on this week, with the Rocket Classic in Detroit and LIV Dallas at Maridoe Golf Club in Texas. While these two tournaments might feel miles apart, they both carry the same pressure with Open Championship exemptions and Ryder Cup consideration on everyone’s minds.

Not to mention, both events have top players making some very interesting putter changes.

Collin Morikawa takes it back to college

Let’s start with Collin Morikawa, who had been using a beautiful Taylor Made Olson 1.0 that, to the putter geeks, is a work of art. But for Morikawa, it saw very limited field time this week as he sidelined it after the first round and swapped it for a one-of-one TM Spider Tour “Collin Proto” that gave him a look that he saw great success with in his time at Cal Berkley. At first glance it looks a lot like the classic Ardmore platform that even Tiger Woods dabbled with in 2018, but this particular blade has some mods that can’t be ignored.

Collin Proto Specs
Length: 34.5”
Loft: 2.5°
Lie: 70.5°
Swing weight: E0
Insert: Pure Roll 
Align: Sight dot
Grip: Superstroke Tour 2.0
Shaft: Diamana 1.0P 105g- tip 1.5″

It seems to be doing the trick as after Round 1 he was 156th in Strokes Gained: Putting and made a herculean leap to 11th after Round 2.

TaylorMade 2025 Spider Tour Black Custom Putter

BLACK PVD FINISH The durable PVD coating creates a beautiful high-quality finish with sole plate, back badge and copper accents.
TRUE PATH ALIGNMENT The patented alignment system provides visual clarity and helps golfers better envision the line to the hole.
WHITE TPU PURE ROLL INSERTMade from a combination of Surlyn and aluminum, the white TPU Pure Roll insert creates a softer feel.Grooves are angled at 45° to encourage optimal forward roll as well as better sound, feel and overall roll characteristics. The white insert also creates better symmetry with the white True Path alignment.
THIN WALL UNDERCUT CONSTRUCTION We’ve engineered a super stable structure by removing excess weight to create high MOI and legendary Spider performance.
HYBRAR ECHO®DAMPENER HYBRAR is behind the face to dampen unwanted vibrations, delivering premium sound and feelon every putt with the best possible sensation.
TSS WEIGHTING TSS weights provide balanced weighting and help optimize performance for all various putter lengths.
STEEL WIREFRAME Allows engineers to better control weight distribution and CG location.

View Product

Rahmbo pulls the Odyssey White OG outta the closet

If I’m being super honest about Jon Rahm’s game, I’d say this: the guy is out hitting pretty much everyone and not making a thing to take advantage of it. This has been the case for the past two seasons, to be honest. He’s had moments of good putting, but ultimately, the only thing that has kept him from winning multiple times is the putter.

After a visit to the Ely Callaway Performance center last Friday, Rahm and the tour Team at Callaway noticed something about his Ai-One Rossie S. Not a technology thing but a variable that nobody could have predicted. The blue finish of the Ai-One marks up when you put it in the bending vice to check loft and lie, resulting in two distinct marks at the top of the cavity (right behind the top line) that Rahm would constantly focus on.

As a player who prefers putters with no alignment aids, having to parallel lines (although subtle) can throw the train off the tracks.

The solution? Go back to the putter he won two major championships with.

This week in Dallas, Rahmbo showed up with his old Odyssey White Hot OG Rossie S (not the 2021 U.S. Open and 2023 Masters blade but an exact copy), and from what I have seen this week — both walking with him during a Wednesday practice round and Friday’s first round — he seems to have that confidence back. Not only was the speed control pristine, but he also made a number of 20-plus footers to get him within earshot of leader Patrick Reed.

The grainy Bermuda greens at Maridoe Golf Club will test anyone’s speed control, and after two rounds, it’s apparent that his feels seem to be coming back. That’s perfect timing, of course. The Open Championship is just around the corner, and Rahm showing up anywhere with a confident putter is a terrifying prospect for his competition.

Odyssey White Hot OG Rossie S Custom Putter

White Hot is the most iconic, most played, and most decorated putter insert of all time. This classic name is synonymous with legendary performance and the unique design properties that Tour players and golfers love.It’s set a standard in insert technology for nearly 20 years and Odyssey has been told over and over again that there’s nothing quite like it. That got them thinking if something is still so overwhelmingly popular, why not bring it back? Yes, they’ve engineered the original formulation into White Hot OG, and the performance speaks for itself.This incredible lineup combines the amazing benefits of their two-part urethane insert technology with a rich silver PVD finish and fine milling on the finishes. It’s available in their premium step-less steel shaft, or Tour-proven, major-winning, multi-material Stroke Lab shaft to help improve your stroke. With White Hot OG, you’re getting one of the most renowned putter innovations of all time in an unbelievable high-performance package.
WHITE HOT INSERT
The original White Hot formulation, feel, sound and performance are all back in one exceptional two-part urethane insert. Tour players and golfers alike have been asking Odyssey to re-introduce it for years, and they’ve listened.
MILLED SURFACE FINISH
Odyssey’s engineers have combined a rich silver PVD finish with fine milling on the surfaces. These ultra-premium offerings are unlike anything you’ve ever seen from a White Hot, and the beautiful designs will appeal to golfers who appreciate the look of a milled putter.
 

MODEL
HOSEL
HEADWEIGHT
TOE HANG
LOFT
LIE
OFFSET

Rossie
S
355g
36°
3°
70°
3/4 shaft

View Product

Putter Specs: 

MODEL: White Hot OG Rossie S
INSERT: Micro Hinge Star
SHAFT: Steel Stepped
LENGTH: 37 Inches EOG
GRIP: Odyssey 56 (4 Wraps) 
LOFT/LIE: 2.5/68
TOTAL WEIGHT: 544 Grams