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Tour Insider: Jon Rahm to Callaway – What we know so far



As with any major signing on the PGA Tour, the Jon Rahm-to-Callaway scenario was only a secret for a minute or two. Let’s be honest, in this age of social media and camera phones, you’d have to incorporate a CIA-style campaign to not get any leaks.

Nonetheless, it’s now official, and we can officially dig into it a little deeper.

I had a chance to speak with Callaway’s PGA Tour & Champions Manager Jacob Davidson on getting Rahm dialed and this is what he had to say.

*more detailed specs are coming on Wednesday. Rahm is still testing the final touches of the “gamer bag” at Kapalua. Stay tuned. 

JW: At first glance, what makes Jon unique from a fitting perspective?

JD: His equipment sensitivity is off the charts. The way he feels his way through the bag and can pick up on even the slightest adjustments in flight or spin is a rarity. He’s a feel player first and foremost but can also adjust to data quickly. From a fitters perspective, it makes our jobs extremely easy.

JW: He’s still working through the final bag as of today, but what can you speak to?

JD: He’s in a very neutral (spin and launch) proto head with his Aldila Tour Green 75 TX shaft. The irons are an Apex prototype that has a thin top line, less offset, and does not have flash face cup. Essentially it plays more like a traditional players CB. He loved these ones right out of the gate. Shafts are Project X 6.5.

JW: The ball switch was the biggest change in my opinion. How did that process play out?

JD: Jon has high expectations for his golf ball, and there’s no doubt the increase in performance he saw with the Chrome Soft X was one of the major factors in his decision to join Team Callaway.

In testing, he picked up ball speed with the driver but most importantly to him, his short iron and wedge trajectory went down with more spin. For a player like Rahm who loves to keep short shots down, it really opened his eyes to be opportunities in 2021. With CSX, he is able to hit stock wedge shots will a lower flight where in previous years he would have to manipulate a few things to make it happen.

JW: Got to be exciting to have someone this in tune for future Callaway products…

JD: His ballstriking and understanding of equipment is so dialed that it opens a ton of learning and R&D opportunities for Callaway. It’s going to be a fun ride.

As mentioned previously, we will continue to update as we learn and JD learns more. There are no tour vans at Kapalua this week, so what Rahm puts into play Thursday morning is still up in the air.


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Johnny Wunder is the Director of Original Content, Instagram Manager and Host of “The Gear Dive” Podcast for He was born in Seattle, Wash., and grew up playing at Rainier G&CC. John is also a partner with The Traveling Picture Show Company having most recently produced JOSIE with Game of Thrones star Sophie Turner. In 1997 Johnny had the rare opportunity of being a clubhouse attendant for the Anaheim Angels. He now resides in Toronto, On with his wife and two sons. @johnny_wunder on IG



  1. jgpl001

    Jan 6, 2021 at 6:40 am

    Big surprise for me he moved from TM, but these guys could play with a $90 set of Dunlop irons and a $30 driver…

    I was a little surprised he saw real, positive gains with the move to the Chrome Soft X ball, for me the TP5 is still king, but I’ll try the Chrome Soft X this spring

    Good luck to him and Callaway

  2. Jimmy

    Jan 5, 2021 at 4:20 am

    So basically all prototype equipment and more than likely a “made for Jon” ball…. don’t think that will move the needle much with the buying public.

    • John Wunder

      Jan 5, 2021 at 8:12 am

      Actually most of his gear will be available, its called proto at this point due to embargo’s and what not. To my knowledge the ball is the retail CSX.

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Whats in the Bag

Emiliano Grillo WITB 2021 (April)



Driver: Callaway Mavrik Sub Zero Triple Diamond  (10.5 degrees @ 8.5, Tour Flat adapter)
Shaft: Fujikura Ventus Blue 6 X (45.75 inches, tipped 1 inch, D1)

3-wood: Callaway Rogue (13.5 degrees)
Shaft: Fujikura Atmos Red 8 X


Hybrid: Callaway Mavrik Hybrid (20)
Shaft: Project X HZRDUS Smoke Hybrid 100 6.5

Irons: Callaway Apex Pro MB ’21 (4-9)
Shafts: Project X LZ 125 6.5

Wedges: Callaway MD3 (46-08S), Vokey SM8 (50-12F, 54-M, 60-M)
Shafts: (46) Project X LZ 125 6.5, (50, 54, 60) True Temper Dynamic Gold Tour Issue S400

Photo via Aaron Dill

Photo via Aaron Dill

Putter: Toulon Design San Diego

Ball: Callaway Chrome Soft X

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Whats in the Bag

Stewart Cink’s winning WITB: 2021 RBC Heritage



Driver: Ping G425 Max (10.5 degrees, CG shifter neutral)
Shaft: Graphite Design Tour AD XC 6 TX (45.25 inches)

3-wood: Ping G425 Max (17.5 degrees @15.5, big -)
Shaft: Project X HZRDUS Smoke Green 70 6.5 (45 inches, tipped 1 inch)

7-wood: Ping G410 (20.5 degrees @19.75)
Shaft: Accra FX 2.0 360 M5 (41.5 inches, tipped 2 inches)

Irons: Ping i210 (3, 5-UW)
Shafts: True Temper Dynamic Gold Tour Issue X100

Wedges: Titleist Vokey Design SM8 (56-08M, 60-04L)
Shafts: True Temper Dynamic Gold Tour Issue X100


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A post shared by Aaron Dill (@vokeywedgerep)

Putter: Ping Vault 2.0 Ketsch Stealth
Grip: Ping AVS Grey/White Palm Lock

Ball: Titleist Pro V1x

Grips: Golf Pride Tour Velvet 58R, logo down

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Whats in the Bag

Lydia Ko’s winning WITB: 2021 Lotte Championship



  • Lydia Ko what’s in the bag accurate as of the Lotte Championship. 

Driver: PXG 0811 X Proto (9 degrees)
Shaft: Mitsubishi Tensei Pro White 1K 50 S (45.75 inches)

3-wood: PXG 0341 X GEN2 (15 degrees)
Shaft: Project X RDX Smoke Blue 60 5.5

5-wood: PXG 0341 X GEN2 (18 degrees)
Shaft: Graphite Design Tour AD IZ 6 S. (42 inches)

Hybrids: PXG 0317 X GEN2 (19 and 22 degrees)
Shafts:  Graphite Design Tour AD IZ 65 R1

Irons: PXG 0311 P GEN3 (5-PW)
Shafts: Aerotech FC 70 S

Wedges: PXG 0311 Milled Sugar Daddy (54), 0311 Milled “Lydia” (58)
Shafts: Aerotech FC 80 S

Putter: PXG Prototype Thunderbolt C

Ball: Titleist Pro V1x Left Dash

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