Ping G425 Vs. Mizuno JPX 921 Irons Comparison Overview

With the compact heads of player’s irons, it’s interesting to see what manufacturers prioritize. After all, when you are working with such a scant design, you can’t very well load the head with all kinds of different features.

So when it comes to smaller player’s irons, manufacturers and consumers alike have to make some important decisions.

Do you prioritize distance features? Forgiveness features? Feel? Find out which routes Mizuno and Ping took with some of their most popular iron lines.

Ping G425 Iron Overview

After a few swings with some of the longer irons, it was pretty clear that Ping made their G425 irons with the mid handicapper in mind.

That’s because these irons are plenty forgiving – even for player’s irons. The blades are nice and short, the offset is minimal and the topline is nice and slim so they look great at point of address.

However, the really shine on long approaches off the deck.

There is a tungsten screw in the toe and a tungsten weight in the hosel so this is about as extreme as perimeter weighting gets.

That means that you will get better ball speed and generally, better distance  on shots away from the sweet spot.

In addition to that, the G425’s are made with 17-4 stainless steel variable face thickness to increase forgiveness up and down the face as well.

Mizuno JPX 921 Irons Overview

For this article, we tested the Mizuno JPX 921 Forged irons in particular.

The Mizuno JPX 921 Forged irons have incredibly thin faces so right off the bat, you get plenty of ball speed.

There is more weight in the heel than there is in the toe as well so you get straighter shots on off-center strikes.

Sounds a bit like the G425’s, don’t they? Here’s where they diverge from one another though. The Mizuno JPX 921 are grain flow forged from a single piece of Chromoly alloy.

We can’t put into words what this construction does for the feel of these irons.

It’s clear that Mizuno emphasized feel above all else; but you also get comparable forgiveness and slightly better distance too.

The Mizuno JPX 921 forged irons simply have more to offer. They play slightly longer (about 5 yards), they feel better and the forgiveness is comparable to the Ping G425 irons. With the G425’s you’re really only getting forgiveness.

Mizuno JPX921 Forged

Category – Forged Irons

Ping G425 Irons

Category – Game Improvement Irons

Mizuno JPX921 First Impressions

The JPX921 irons couple incredibly sleek looks at address and with an amazing forged feel.

The Mizuno JPX921 Forged irons have a beveled trailing edge on the sole which smooths out turf interaction. This coupled with the obvious amazing feel from the grain flow forging process makes these irons so pleasing to swing.

The blades of these muscle back irons are pretty compact and there is a part of the back area that has been milled to increase stability and thin out the back wall a bit.

These irons also feature the notorious  chromoly construction which contributes to the soft feel.

Ping G425 Irons – First Impressions

After taking 2020 off, the G425 Irons are a much anticipated upgrade to the G410’s and the first thing you notice with these irons is that the heads are smaller and more compact.

The irons incorporate two weights, a visible screw at the front of the clubhead and a weight in the hosel. This, coupled with the wide and cascading sole allows a quality ball launch angle.

Ping have gone for the metal wood style material for the first time in a set of irons and the variable face thickness allows for a lot of forgiveness and ball speed on any strike, even when you hit the ball off center.

They also have a multi material badge filling in the cavity at the back to dampen any vibrations on mishits.

The irons have a slight bit of offset for forgiveness but you are going to get plenty of feel from these especially from Irons you would classify as game improvement.

Mizuno JPX921 Pros & Cons


  • Good accuracy
  • Forgiving
  • Played longer
  • Great feedback
  • Toe bias
  • Milled back


  • Pricey
  • Heavy
  • Fewer long iron options
  • Not for beginners

G425 – Selling Points

  • Metal Wood Finish
  • Multi Badge Material
  • Small, More Compact Heads
  • Perimeter Weighting
  • Excellent Feel And Control
  • More Performance From A Smaller Head

Who Are The JPX 921 Forged Irons For

For starters,  these irons would work great for any player who wants to emphasize precise feedback and feel as a low handicapper and beyond.

We can’t emphasize enough that you’re not going to want to invest in these irons if you’re just starting out with golf. These are performance irons through and through for the better players.

While the JPX921 Forged irons do give impressive distance the compact heads and points of design emphasis will be lost on beginners who will struggle to find the sweet spot consistently, if they don’t find the higher price point off putting enough already.

The JPX921 irons did play more accurate around the pin and were more forgiving than many forged Irons with their toe bias weighting.

Perfect for single digit handicap pin hunters around the world.

The JPX921 Family

The JPX921 Forged irons are joined by the JPX921 Tour and JPX921 Hot Metal irons.

The JPX921 Tour irons produce surprisingly straight shots for tour-grade clubs. They have sleek, compact heads and feature the same grain flow forging construction.

The JPX921 Hot Metal irons are the most forgiving in the family with a Cup Face design that preserves ball speed around the perimeter.

Distance: 93/100

Accuracy: 95/100

Forgiveness: 89/100

Feel And Control: 96/100

Overall Score: 94/100

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Who Are The G425 Irons For

The Ping Irons aren’t going to be for every beginner. These irons will be incredible popular for improving and better players who want to get more feel on the ball without sacrificing forgiveness and consistency.

If you are someone who wants to starting working the ball a bit more, the G425’s are a perfect choice.

Ping G425 Family Of Irons

The G425 Irons also come in a crossover version which are black in color and the steel face on the crossover maximizes the distance you can get with G425 Crossovers.

Distance: 95/100

Accuracy: 95/100

Forgiveness: 94/100

Feel And Control: 93/100

Overall Score: 94/100

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