July 11

Tiger Woods Irons: a Confession on Specs

Golf Club Fitting


What's different between your irons and Tiger Woods irons?

Let's break it down simply.  On the left column,  Tiger's specs (straight from the company website).  On the right column, a typical set you might purchase.

Tiger's Irons

  • Tiger skips out on the GW; his PW is 49 degrees! 
  • Minimal offset ; 1.8mm for the 6-iron.
  • Heavier swing weight; D4
  • Very heavy (~130g) steel shafts.
  • Shorter overall length; 37 13/19" (6-iron).

Your Irons

  • The PW is 44 degrees; you might need two GW's!
  • About 3 times more  offset; ~5mm for a 6-iron.
  • Lighter swing weight; D2
  • Light steel or graphite shafts; usually <100g.
  • Longer lengths; 38" for a 6-iron.


Tiger's irons are shorter, heavier, and higher-lofted irons than your typical set, especially if you buy newer irons.

Yes, Tiger is a physical specimen.  Even with his laundry list of injuries, it's no surprise he can still keep up with the "big boys".  That's with "outdated" iron specs that most OEMs wouldn't even consider selling to you.

You're being sold potential distance, not true performance.

But why are you OK with that?

Consider this: Ping, for decades, only ever sold irons with 125-gram shafts in their irons.  For decades, no one complained.  It was the distance explosion that made them change their strategy.  They decided getting into step with the "lighter, longer" crew would be best.

But who cares about that?  You do, it seems, because the OEMs are selling us irons that get longer with less loft.  It's called Vanishing Loft Disease, and it's one of the hidden "costs" of buying new clubs.

Tiger's irons aren't distance clubs

As Phillip Moore, in his book The Mad Science of Golf says, irons are for "controlled distance".  Tiger can hit his 7-iron 172 yards (carry!), but his irons aren't built for distance.  He has higher lofts, shorter lengths and heavier shafts because he wants control over his ball flight.

He knows that distance comes from:

  • the swing speed he creates
  • contact on the "sweet spot" with a club that's square to the target line.

Tiger's irons specs help him do that.  

Tiger Woods Irons: the Discussion

With the advent of the vanishing loft, there's an ever-increasing need for a re-evaluation of your set make-up.  Buying golf clubs isn't getting easier...


Tiger doesn't have to have a Gap Wedge, because his Pitching Wedge is the loft of many current GWs.  You can find the GW in sets of irons from 48 to 53 degrees, with the majority hovering more to the stronger side.

If you have a GW at 48 degrees, what do you do to fill the 8-degree gap between it and your 56-degree Sand Wedge?  Keeping things evenly spaced with your wedges is the ideal way to go.  That means at 4-degree spacing your set would consist of:

  • 44-degree PW 
  • 48-degree GW
  • 52-degree GW2
  • 56-degree SW
  • 60-degree LW

Five wedges... and what do you do with the top end of your set?  Would you keep the 19-degree 3-iron as well as the 19-degree hybrid?

But let's be frank: you could buy a set of irons from 5-GW, and it'd be pretty damn close to Tiger's 3-PW set.

Check the specs to these clubs, and go back to Tiger's irons specs.  From the 5-iron to the GW, they're almost loft-for-loft the same as Tiger's 3-PW.  

In this new set, Tiger's clubs are actually longer (38 5/16" 4-iron vs. 38" 6-iron) than what you'd be using, but that's OK.  It's not much, but you'll get just a bit more control with the shorter length.


As we saw in the opener, Tiger's irons have about three times less offset than what you'll find in most iron sets.  But what does offset do?

Take a look at this:

offset difference between a "pro" iron and a "hacker" iron

Really look at these.  Is there a big enough difference?

In a nutshell, offset's biggest thing is to set the head's Center of Gravity (CG) location.  The more offset, the higher the launch angle because the club's CG location is farther back.

Check out Green Lantern Golf's golf shaft guide!

If you have a fast swing and the ideal ball-then-turf contact, you don't need a lot of offset.  But there's a catch: according to Tom Wishon, in his Common Sense Clubfitting bible book (p. 171 for those able to follow along):

  1. Irons have a very thin front-to-back measurement, especially when compared to the woods.  The thicker "game improvement" irons are still not that different from "pro" iron heads.
  2. The variation isn't that great.  Take our examples: Tiger's 4-iron has an offset measurement of 1.9mm.  The non-Tiger 6-iron, with similar specs, has an offset of 5.7mm.  Sure, it's almost three times less, but grab a Canadian ruler.  How much is a 4mm difference, really?
  3. The shaft also effects how much the CG alters the trajectory.  With a wood and its .335" diameter, it's comparatively weaker compared to iron shafts that have .355" and .370".  The more stout iron shaft prevents the head from bending the shaft forward at impact.

Are you missing out on something?  If you struggle with getting the ball airborne, an iron with more offset will help... but only a little bit.  The difference between your clubs and Tiger's clubs aren't that great in this instance!

The Final Three

Swing weight, or head heft, is heavier in Tiger's irons because he uses heavier shafts.

No, duh, right?  Well, yeah, but...

Here's the thing: if you want to see a significant positive change in distance with your irons, you'd have to drop the weight 35 grams!  

Why 35 grams?  If you cut the weight significantly like that, you're going to reduce the swing weight- by a lot.  To get it back to where it was, you'd have to add 10 grams or more back to the head.

If you're already playing a 100-gram shaft, you'd need to drop it down to 65 grams.  That's the same weight most people use in their drivers and fairway woods!

At what point does this become unreasonable? 

Should YOU play with Tiger Woods irons? 

This is why custom-fitting is so important!  You may find you actually need something far from what Tiger plays.  You may find you need something similar to Tiger's iron specs.  

No, you may not have the inherent skill Tiger does, but that's irrelevant.  You should still be playing the specs that best allow you to find the "sweet spot" most of the time, with what you consider a good trade-off between distance and accuracy.

What are your specs?  How in tune are you with your gear?

About the author 

Justin Blair

Justin Blair is the founder of Green Lantern Golf. When he isn't bringing his 10+ years of excellent craftsmanship experience to golf club fitting, building, and repair, he's geeking out about Star Wars (he's watched them all about 8,437 times!) and things like the MCU and LOTR, he's drinking mead and craft brews. If you wanna know more, check out my About Page!

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