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A last-minute driver tweak helped Phil Mickelson power to a record-breaking sixth major title at the US PGA.

The 50-year-old is now the oldest man ever to win a major championship after successfully seeing off Brooks Koepka and Louis Oosthuizen at Kiawah Island.

He got there, in part, by hitting his trademark “bombs” off the tee – and those were super-charged thanks to a brand new driver that he put in the bag before play got underway.

Mickelson new gamer, with just six degrees of loft and a 48-inch shaft, employs Callaway’s new A.I.-designed Jailbreak Speed Frame that not only stiffens the body in the vertical direction, but by applying Artificial Intelligence, enhances horizontal and torsional stability too, promoting an increase in ball speeds across the face.

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On his way to becoming golf’s oldest ever major-winner, the Californian consistently averaged over 300 yards off the tee, including a huge 366-yard drive on the 16th during final day’s play – the longest by any player on that hole all week!

According to Callaway’s tour team, Phil made the switch to Epic Speed after being impressed by the distances he was getting during testing. He also liked the ball speed and consistent spin rates he had been seeing.

Mickelson’s Chrome Soft X Golf Ball, featuring Triple Track, was another crucial ingredient to his latest success, and has been his product of choice in all of his victories since 2019.

Chrome Soft’s Triple Track Technology utilises Vernier Hyper Acuity, the same visual technology used to land planes on aircraft carriers. It helps improve alignment compared to a regular side stamp aid, and Triple Track lines on the ball particularly improve accuracy.

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Mickelson’s putting performance also reasserted Odyssey’s domination of the worldwide tours. His victory marked the 94th major win for the brand.

Odyssey has been No.1 at the last 25 consecutive majors and continues to be the No.1 putter on every major tour worldwide.

What’s in the Bag – Phil Mickelson, US PGA Championship


Callaway Epic Speed (6°, Fujikura Ventus Black 6TX shaft)


Callaway X-Forged UT (3-5, KBS Tour V 125 S+ shafts)


Callaway Apex MB (6-PW, KBS Tour V 125 S+ shafts)


Callaway PM Grind (52°, 55°, 60°; KBS Tour V 125 S+ shafts)


Odyssey Prototype PM Putter


Chrome Soft X Triple Track

author headshot

Michael McEwan is the Deputy Editor of bunkered and has been part of the team since 2004. In that time, he has interviewed almost every major figure within the sport, from Jack Nicklaus, to Rory McIlroy, to Donald Trump. The host of the multi award-winning bunkered Podcast and a member of Balfron Golfing Society, Michael is the author of three books and is the 2023 PPA Scotland 'Writer of the Year' and 'Columnist of the Year'. Dislikes white belts, yellow balls and iron headcovers. Likes being drawn out of the media ballot to play Augusta National.

Deputy Editor

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