Equipment
Henrik Stenson latest pro to put exclusive invitation-only golf ball into play
Henrik Stenson has partnered with the invitation-only golf society called The Underground and will put its golf ball in play for the first time at this week’s Senior PGA Championship. The event marks Stenson’s debut on the senior circuit, as the five-time European Ryder Cup participant turned 50 earlier this month.
The partnership represents a significant milestone for The Underground, a private collective that has quickly and quietly generated interest among athletes, celebrities and avid golfers seeking to be part of: “an exclusive club that exists beneath the surface of the mainstream game.”
Stenson is now the brand’s second professional to put the ball into competition, with Sergio Garcia also playing the ball.
“Performance is everything when it comes to equipment. I can feel the difference in quality and consistency. I’ve put in the time testing it, I trust it, and I’m really looking forward to getting it out there in competition.” – Henrik Stenson
While membership includes a curated selection of apparel and accessories, the centerpiece remains the golf ball itself, which the company hails as “meticulously engineered, never sold at retail, and held to a level of quality control that exceeds even the standards of the game’s largest manufacturers.”
The new venture was co-founded by Hollywood star Mark Wahlberg, Garry Singer (former co-founder of Clear Golf Balls), and retail heavyweight Doug Meijer.
“We built The Underground for players who care about performance at the highest level, but also want to be part of something that sits outside the mainstream. To have a major champion like Henrik put the ball in play and trust it when it matters most says everything about what we’ve built.” – Garry Singer
Whats in the Bag
Jason Day WITB 2026 (June)
- Jason Day had >14 clubs in his bag when photographed prior to the Memorial Tournament.
Driver: Ping G430 LST (10.5 degrees @9.5)
Shaft: KBS TGBlack 60 TXX

3-wood: TaylorMade Stealth 2 Plus (13.5 degrees)
Shaft: KBS TGBlack 70 TXX

5-wood: TaylorMade Stealth 2 Plus (18 degrees)
Shaft: KBS TGBlack 80 TXX

7-wood: TaylorMade Stealth (21 degrees)
Shaft: KBS TGBlack 80 TXX

Irons: Avoda Prototype V3 (4-G)
Shafts: KBS TGI Tour Graphite Iron Shaft 110

Wedges: Avoda Prototype (S), Avoda W2 Prototype (L)
Shafts: KBS TGI Tour Graphite Iron Shaft 110

Putter: TaylorMade Ghost Spider Itsy Bitsy Black

Grips: JumboMax JMX Zen Lite
Ball: Bridgestone Tour B X (with Mindset)
Equipment
From the GolfWRX Classifieds: $3,250 Scotty Cameron Circle T Black Tour Type Timeless NP2
At GolfWRX, we are a community of like-minded individuals who all experience and express our enjoyment of the game in many ways.
It’s that sense of community that drives day-to-day interactions in the forums on topics that range from best driver to what marker you use to mark your ball. It even allows us to share another thing we all love – buying and selling equipment.
Currently, in our GolfWRX buy/sell/trade (BST) forum, @backtee72 has a stunning, pricey Scotty Cameron up for sale. The putter comes with a Scotty’s Custom Shop Junkyard Dog cover.

From the listing:
“Scotty Cameron Circle T Black Tour Type Timless NP2. 34” Circle T Shaft with paddle grip. Slight scratch on topline I marked over. priced accordingly. $3,250 Shipped OBO.”
To check out the full listing in our BST forum, head through the link. If you are curious about the rules to participate in the BST Forum, you can learn more here: GolfWRX BST Rules.
Equipment
Details on Jason Day’s latest prototype Avoda iron setup
Jason Day is back in his V3 Avoda prototype irons. That’s not new for him. He’s been switching between irons this year to help as he goes through phases of what shots he’s looking to hit. One set will shape the ball more naturally for the Australian, while the other helps straighten up his ball flight.
What is new this week at the 2026 Memorial Tournament, hosted at Jack Nicklaus’ Muirfield Village Golf Club, is the concept of progressive swing weighting through Day’s iron setup. Each head has now been weighted using lead tape through the longer irons to increase the swing weight.
“We’ve seen that the majority of players, as the ball moves forwards in their stance, fractionally increasing the swing weight just helps delay the release a little bit,” said Tom Bailey, Avoda Golf Founder, when GolfWRX caught up with him to talk about Day’s newest endeavor. ” It gives them more time to get to that forward ball position.”
It’s a pretty simple philosophy for a company that does some really in-depth club concepts. Basically, the further back the ball position is, the more a golfer will need to release the clubhead earlier to square it up. Then, as the ball gets further forward in the stance, the time to release the club extends, and the golfer will need to do it later in the sequence.
Bailey likes to think of it as Avoda’s own take on moment of inertia matching, where clubs are built to require the same amount of force.

“We just did some testing over the last couple of weeks and found that he (Day) does get along better with a progressively heavier swing weight,” Bailey added. “He gets fractionally heavier by about half a swing weight, so he gets a few swing weights through the set and then through to his woods; they continue progressing.”
Day’s scoring clubs start at around D3 in swing weight, and then, with a little Andrew Von Lossow lead tape action, he transitions up to D5 in his 4-iron, which works perfectly as Day’s 7-wood is D6. Bailey told GolfWRX that Day’s woods continue to progress up to D9 in his driver.
The progressive weighting isn’t the only new option in Day’s bag for Muirfield Village. He’s added a brand-new sand wedge, or should it say sand iron.
“He’s hitting his pitching wedge and his 9-iron and going, these just go through the turf so good, I wish I could have this in my wedges as well,” Bailey added. “… So, we started with making him an iron-head gap wedge. And he used that straight away instead of a wedge-head … He called and said, ‘I don’t really open the face of my sand wedge much either, so why don’t I just have my sand wedge the same as my irons.’ So we built him the exact same head shape, and sole as he’s got on his irons.”

The sand wedge in Day’s bag is similar to the blade prototype irons, which he used earlier this year at the RBC Heritage, if you’re able to keep up.
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Kurt
Apr 19, 2026 at 7:44 am
Im sure its way better than a Pro V1 yes we believe you
AB
Apr 18, 2026 at 8:34 am
just simply stupid
The Truth Network
Apr 17, 2026 at 8:20 am
Fitting. This “underground’ society is a bunch of losers and so is Henrik.
Mike Boack
Apr 16, 2026 at 1:08 pm
More like built for snobs
By annoying Hollywood weird