”Mizuno’s Swing DNA System records 40 unique data points from more than 175,000 golfers each year. This data provides the basis for every JPX Iron project.“We’re constantly evolving the JPX series based on more than 175,000 unique swings we capture every year on the Mizuno Shaft Optimizer,” says Bill Price, Mizuno’s Director of Fitting. “Recently we’re seeing an increase in the number of players with slightly slower swing speeds being fitted – and a trend to more shaft lean.  Hence a slight increase in bounce angles through all the models and the introduction of the Hot Metal High Launch.”

JPX923 Tour

JPX923 Forged
A mid-sized, full body grain flow forged iron delivering a perfect balance of ball speed, stability, and feel. The third generation of Chromoly Forging (4-7 iron) incorporates a milling slot that extends wider to heel and toe.  Paired with an even thinner clubface it creates our highest one-piece Forged ball speeds from an even greater portion of the clubface.  The irons showcase a thinner top line throughout, plus compact scoring irons (8-GW) and bevelled sole for improved turf interaction.
The JPX923 Forged is a mid-size cavity iron suitable for a wide range of players, from professionals to mid-handicap amateurs. The 4-7 iron are Forged from a single billet of 4120 Chromoly and back milled from to heel and toe. This creates extreme ball speeds from a compact workable profile. The face thickness is now reduced to just 2.2 mm behind impact compared to 2.6mm in the JPX921 Forged. The 8-iron to GW are forged from 1025E Pure Select mild carbon steel for ultimate precision, control and feel in the scoring zone. 8-iron to GW are more compact with shorter blade length for further control.
Availability: 4-GW (RH/LH) On sale date: Feb 2023 RRP: £185/€195 per club

JPX923 Hot Metal
Introducing Nickel Chromoly – a new material with so much additional ball speed that Mizuno’s engineers switched their focus to feel and stopping power. At 35% stronger than our original Hot Metal material, 4335 Nickel Chromoly enables a high-energy 8% thinner clubface. Combined with Mizuno’s vibration controlling V-Chassis and deep CG design, the JPX923 Hot Metal irons are as enjoyable and controllable as they are long.
The seamless cup face construction delivers the deep centre of gravity needed for a high launch and controllable landing angle for increased stopping power whilst the thinnest part of the sole has been extended 18% wider to create a wider high-energy area on the face for more consistent ball speeds.

There are three fitting options – Hot Metal Pro, Hot Metal and Hot Metal HL (High Launch.)  175,000 real golf swings recorded via Mizuno’s Swing DNA system every year highlighted the need for variable launch options.

JPX923 Hot Metal Pro is a player’s speed cavity that’s compact, with minimal offset for confident ball-strikers seeking maximum ball speed. It’s suitable for low to mid handicap golfers.

JPX923 Hot Metal is a forgiving speed cavity suitable for mid to high handicap golfers. It features a full speed, high stability cavity for straight flight and distance.

JPX923 Hot Metal HL is a high launch speed cavity delivering a higher launching option for players with moderate swing speeds or aggressive shaft lean, it’s suitable for mid to high handicap golfers.

Availability and Pricing
JPX923 HOT METAL PRO: 4-PW (RH/LH). RRP: £150/€195 per club
JPX923 HOT METAL: 4-LW (RH/LH). RRP: £135/€175 per club
JPX923 HOT METAL HL: 5-SW (RH only). RRP: £135/€175 per club

On sale date: September 2022

CUSTOM FITTING OPTIONS
All JPX923 irons will be available through the Mizuno Custom Program, which offers one of the widest selections of no upcharge shafts and grips in the industry. It provides a comprehensive range of custom fitting options, from state-of-the-art Mizuno Performance Centres spread throughout the world to a global network of Mizuno Fitters and Swing DNA Fitting Centres that rely on the Mizuno Shaft Optimizer and high-tech Swing DNA software to pinpoint each customer’s best-performing specifications.

For more details, visit mizunogolf.com/uk