From Triple Diamond to Max D, four Callaway Quantum driver heads have appeared on the USGA Conforming list, and we think they aren’t done yet…
The Callaway Elyte driver family is being replaced with Callaway Quantum for 2026, with the Elyte Triple Diamond, Core, and X paving the way for the Callaway Quantum Triple Diamond, Triple Diamond Max, Triple Diamond TD-TD (LH only so far), and Max D. There appears to be no sign of a core model yet, although we expect that to change very soon.
The name “Quantum” sees a significant step away from the Elyte, Paradym, and Paradym Ai-Smoke family that we have seen in recent years. Callaway’s drop to the USGA Conforming List comes shortly after TaylorMade’s Qi4D family was released to the database, with Rory McIlroy and Tommy Fleetwood putting the drivers in play on the DP World Tour.
While key staffers such as Alex Noren putting the Callaway Quantum family in play already, we expect more to follow once the 2026 season is well underway. While we don’t yet know what the Quantum name means – and Callaway are keeping those particular cards close to their chest – we imagine it’s something substantially different to previous years. Time will tell.
It’s difficult to dive into these heads with the information released, as there is only one small black-and-white image of each head to investigate, but here is what we think we know so far.
First look: Callaway Quantum driver
Here’s what we know about the new range so far…
Callaway Quantum Triple Diamond (RH/LH)
Lofts: 8,8.5,9,10.5
Sole: Adjustable Weight Port, Tri
Face: Tri
The Callaway Quantum Triple Diamond will likely so the highest usage on tour, with Xander Schauffele and Jon Rahm key staff members who we’d expect to game this in 2026. Adjustable weighting has been added to the Triple Diamond family for 2026, with a very mysterious “Tri” labelled for the face. One could speculate what this means, but we wouldn’t get far.
Callaway Quantum Triple Diamond Max (RH/LH)
Lofts: 8.5,9,10.5
Sole: Adjustable Weight Port, Tri
Face: Tri
A U.S only model with the Elyte family for 2205 (which I’m still unhappy about), the Triple Diamond Max returns to hopefully be a worldwide offering, starting at 8.5 degrees of loft. If Quantum follows suit in replacing Elyte, this ‘Max’ model will offer slightly more forgiveness and higher MOI than the Triple Diamond model, whilst still being suited to the faster player.
Callaway Quantum Triple Diamond Tour Draw (LH)
Lofts: 9,10.5
Sole: Adjustable Weight Port, Tri
Face: Tri
This may seem like quite a bizarre offering, with only two lofts and left-hand only being made available on the USGA Conforming List. Fear not, Callaway have not lost their marbles; This USGA Conforming List drop seems to be tour-oriented, with the Callaway Quantum Triple Diamond Tour Draw likely released for Akshay Bhatia to put in play, with the American putting similar models in his bag.
Callaway Quantum Max D (RH/LH)
Lofts: 9,10.5, 12
Sole: Adjustable Weight Port, Tri
Face: Tri
A different colourway has appeared for the Callaway Quantum Max, with the draw-bias high MOI model targeting an array of golfers. From Alex Noren to senior golfers, it’s clear to see that the Quantum family is following in the footsteps of Elyte with versatility on offer with every model. Personally, I far prefer the look of the Triple diamond models, but it’s only a black-and-white picture we’re going off.
Also on the 2026 USGA Conforming List:
What is the USGA Conforming List?
The USGA’s Equipment Database identifies golf balls and clubs that have been submitted and evaluated for conformance to the Rules of Golf by the United States Golf Association and/or The R&A.
It essentially means the USGA has approved the equipment for use in competitive golf. For a driver to be listed as conforming, the manufacturer has to submit it to the USGA, who then check it meets their rules & specifications. Only once it’s approved by the USGA can players use it in competition.
Manufacturers can sell non-conforming equipment, and some do, but it tends to be pretty niche.
