Dan Box
By Dan Box

Mizuno's JPX iron line has been one of the most highly-regarded in the equipment world for well over a decade, and the Japanese manufacturer is back again with a stunning new range: the JPX 923.

Mizuno JPX923 Irons

There are five different irons in the range, inspired by data from more than 350,000 real golfers using Mizuno's Swing DNA system.

"We're constantly evolving the JPX series based on more than 175,000 unique swings we capture every year on the Mizuno Shaft Optimiser. 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 al the models, and the introduction of the Hot Metal High Launch."

Bill Price, Mizuno Director of Fitting

Mizuno JPX923 Tour Irons

The most played Mizuno iron in professional golf, the new Tour iron is still Grain Flow Forged with 1025E carbon steel but now adds a copper underlay to provide an even better feel at impact.

Mizuno JPX923 Irons

It also has a narrower topline and more rounded trailing edge, which is designed to improve turf interaction - Mizuno are calling this their new V-Chassis.

Mizuno JPX923 Irons

A shallow cavity that is aimed at elite amateurs and professionals, the Tour has refined short irons which are more compact, with a shorter blade length from the 6 iron down to GW to provide more precision when looking to attack.

Mizuno JPX923 Irons

Available in 4-GW, the JPX923 Tour are priced at £185 per iron (right-handed only) and on sale from February 2023.

Mizuno JPX923 Forged Irons

A mid-sized, Grain Flow Forged iron, the Forged is designed to deliver a balance of ball speed, stability and feel. The Chromoly forging in the longer irons is now in its third generation, and features a new milling slot which stretches out towards both the heel and the toe.

Mizuno JPX923 Irons

This pairs with a thinner clubface to create higher ball speeds across a greater area of the face. The irons also have a thinner topline across the setup, with more compact scoring irons from 8-GW and a bevelled sole to improve turf interaction.

Mizuno JPX923 Irons

It's a mid-size cavity which Mizuno says is suitable for a wide range of golfers form professionals to mid-handicappers.

Priced at £185 per iron, the JPX923 Forged is available from 4-GW in both right and left-handed with a release date of February 2023.

Mizuno JPX923 Hot Metal Irons

The Hot Metal irons feature an all-new piece of technology - Nickel Chromoly. This material has produced big gains in ball speed, allowing Mizuno's engineers to focus on improving feel and stopping power.

Mizuno JPX923 Irons

35% stronger than the traditional Hot Metal material, the Nickel Chromoly allows for a 8% thinner clubface which helps to achieve those higher ball speeds.

A cup face construction delivers a deep centre of gravity which is needed for a high launch and a controllable landing angle to increase stopping power. The thinnest section of the sole has been made 18% wider, to create a larger sweet spot on the face for more consistent ball speeds.

The Hot Metal Pro is a 'player's speed cavity' which is compact with hardly any offset, aimed towards confident ball strikers who are looking for a bit of extra ball speed and best suited to low to mid handicap golfers.

Mizuno JPX923 Irons

The standard Hot Metal is a slightly more forgiving speed cavity which is aimed at mid to high handicap golfers. It features a full, high stability cavity which is built for a straight flight and distance.

Mizuno JPX923 Irons

The Hot Metal HL is a high launch speed cavity which encourages a higher ball flight for golfers with slower swing speeds or who deloft the club at impact. It's suitable for mid to high handicap golfers.

Mizuno JPX923 Irons

The Hot Metal irons are available from September 2022 at the following prices:

Hot Metal Pro (4-PW) - £150 per iron.

Hot Metal (4-LW)/Hot Metal HL (5-SW) - £135 per iron.

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Mizuno Pro 223 Irons Review

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More from Mizuno


Mizuno JPX923 Tour Iron

Mizuno JPX923 Tour Irons - Product Details

UK LaunchFebruary 2023
UK Launch RRP£1295
European LaunchFebruary 2023
European Launch RRP€1365
Handicap Range
Hand AvailabilityRight
MaterialSteel, Carbon, Copper
DesignCavity Back
Set Makeup4, 5, 6, 7, 8, 9, PW
Additional ClubsGW
Manufacturer's WebsiteMizuno Website

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