Equipment

ER9-10K: Evnroll adds an ultra-high MOI putter to its lineup

Published

8 years ago

Jan 31, 2018

Evnroll founder Guerin Rife saw the high-MOI mallet trend in professional golf and decided to raise the bar (appropriate, given his historical fondness for bars on his putters). Enter the ultra-high MOI ER9-10K Extreme mallet.

“I noticed more and more lately that many players on the PGA Tour are opting for high MOI oversized putter head designs,” Rife says. “They have to stand over a 4-foot putt worth $200k to $1m that will change their life. The pressure can be paralysing.”

According to the company, the highest MOI putters on the market are in the 5,000 range. As you might guess from the name, the ER9-10K has an MOI of 10,000.

In other words, as Guerin Rife says

“The ER9-10K is stability on steroids!”

To keep overall size down, the ER9 has milled 6061 aluminium body with hollow cylinders that run along the length of the head where steel weights are inserted. A range of short and long rod weights can be plugged in to dial in swing weight based on shaft length, grip weights and counter weights.

The ER9-10K also features Evnroll’s “Sweet Face” Technology: a unique mill pattern engineered to deliver uniform performance across the entire hitting area of the putter.

Additionally, the grip is geared toward enhancing MOI. The patent-pending Gravity Grip features a 70g, 10-inch steel rod that travels the full length of the deep V underside of the grip. This places 85 percent of the grip’s total weight in the fingers below the shaft, promoting a toe-up square face to the swing plane. At 120 grams, the Gravity Grip also acts as a counter weight.

The ER9-10K Extreme mallet will be available in three head weights according to shaft length (33 inches at 415 grams; 34 inches at 400 grams; 35 inches at 385 grams) with hosel options of either plumber neck or short slant neck.

The ER9-10K mallet extends the full Evnroll product range to 11 models for 2018. Starting spring of 2018, all new models will join the existing product line-up, available in 33, 34 and 35-inch lengths with an MSRP of $329 for the ER1, ER2, ER2cs & ER3 and $359 for the ER1.2, ER5, ER6, ER7, ER7cs, ER8 & ER9.

See what GolfWRX members are saying about the 10K putters here.

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Ben Alberstadt

Ben Alberstadt is the Editor-in-Chief at GolfWRX, where he’s led editorial direction and gear coverage since 2018. He first joined the site as a freelance writer in 2012 after years spent working in pro shops and bag rooms at both public and private golf courses, experiences that laid the foundation for his deep knowledge of equipment and all facets of this maddening game. Based in Philadelphia, Ben’s byline has also appeared on PGATour.com, Bleacher Report...and across numerous PGA DFS and fantasy golf platforms. Off the course, Ben is a committed cat rescuer and, of course, a passionate Philadelphia sports fan. Follow him on Instagram @benalberstadt.

6 Comments

peter collins

Feb 4, 2018 at 2:42 pm

If the Putter, works better for you, than the one in your bag, and you can afford it buy it simples.
If it works for you forget the mathematics and logarithms of how it was achieved.

Reply Report comment
orv

Feb 3, 2018 at 1:49 pm

Only a desperate deluded hacker would want this pile/piece of junk. No tour pro would play this abomination unless paid-to-play. Stooopid …!!!!

Reply Report comment
OB

Feb 1, 2018 at 4:58 pm

ER9 putter head = 400 grams
Gravity Grip = 120 grams
Steel shaft = 120 grams
Total weight = 640 grams = 22.57 oz. = 1.4 pounds ….!!!!
Golf ball = 1.62 oz..
Ratio of putter weight to ball weight = ~14:1 :-O 😮 :-O

Reply Report comment
mike

Jan 31, 2018 at 6:44 pm

“The ER9-10K Extreme mallet will be available in three head weights according to shaft length (33 inches at 415 grams; 34 inches at 400 grams; 35 inches at 385 grams)…”
33 x 415 = 13,695 gram-inches
34 x 400 = 13,600 gram-inches
35 x 385 = 13,475 gram-inches
All about the same first moment about the handle end … 😮

Reply Report comment
- mike
  
  Jan 31, 2018 at 6:55 pm
  
  Oh… and the putter weighs nearly a pound (~15 oz.) which should be adequate to overwhelm a 1.68 ounce ball… but maybe it’s too heavy to swing back and stroke forward with a soft finger grip. Maybe it requires a strong ham-fisted grasp to keep under control while torquing otherwise the pendulum stroke will break down and go out of control…. ya think?!! 😀
  
  Reply Report comment
  - OB
    
    Feb 1, 2018 at 11:05 am
    
    High MOI is good for off-center miss-hits on the putter face, but it’s the enemy of the putting stroke because of weight imbalance in the hands. If you hit the ball on the putter sweet spot and +/- 1/2″ the excessive MOI is useless.
    If you have an unstable putting stroke the high MOI is your enemy because it will further destabilize your putting stroke. You will lose control of the putter, plain and simple.
    
    Reply Report comment

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Equipment

Putters that never made it: Check out some of the best tour builds that didn’t make the cut

Published

2 weeks ago

May 18, 2026

Alistair Cameron

Arguably, the best perk of being a professional golfer on the PGA Tour is the ability to request or even just be handed pretty much any club you could think of. It happens more often than you think, usually with putters around the practice green from one event to the next. Come Wednesday, the Tour bags lining the edge of the putting surface become resting places for fallen flatsticks that never made the cut.

So let’s take a look at some of the best we’ve seen out on Tour this year that never made it to the competition. (You may notice none of Hideki Matsuyama’s custom Scotty Cameron putters made this list. There are too many.)

Let’s start with this custom Damascus Milled Odyssey Rossie made for Ryo Hisatsune. Featuring a single line and the short-slant hossel, we’ve seen plenty of Number 7 and jailbird heads featuring the Damascus Milled insert, but this is the first and only one we’ve spotted in a Rossie. Hisatsune primarily putts with an Odyssey Black Series iX #9, but we have seen him recently with a TaylorMade TP Collection SOTO, so there could be potential that the Damascus Milled Rossie could end up in the bag.

Everyone wants to be Cameron Young right now. We’ve had Justin Thomas and Tom Hoge both game the Scotty Cameron 9.5R prototype. Well, for the PGA Championship, Brooks Koepka nearly joined that list after requesting the same style of putter, with the full-length alignment line. But the Scotty Cameron reps took the request a step further and made one specially for Koepka with a Teryllium insert, similar to one in his previous Newport 2 gamers. The reason why this one didn’t go into play, though? Because it was too heavy.

Harry Hall was the third-best putter on Tour last year, so when Bettinardi made him a custom proto, you know it was going to be good. The custom BB28 blade features VDF face milling, a custom-welded single-bend shaft, and the owner’s initials – HH – on the sole of the putter. Hall, who usually games an Odyssey O-Works #7 W, has dabbled with a TaylorMade Spider Tour X already this year. Maybe there’s a chance this Bettinardi might make his bag.

Honestly, this one doesn’t need a description. It’s Kieth Mitchell’s custom Scotty Cameron Napa. One Scotty Cameron face stamp, two Scotty Dogs, two Scotty Cameron 7-Point Crowns and one Circle T. That is all. Oh, except for the Cashmere Cameron headcover.

Finally, and just for fun, how about we pour one out for this TaylorMade Spider Tour X made for Scottie Scheffler in its new torched finish. It’s unlikely we’ll see a putter change anytime soon from the best golfer in the world. In fact, he hit just two putts with it on the Harbour Town practice before going back to his trusty gamer.

Whats in the Bag

Patrick Reed WITB 2026 (May)

Published

2 weeks ago

May 18, 2026

GolfWRX Staff

Driver: Titleist GT3 (9 degrees) Buy here.
Shaft: Aldila Rogue Silver 130 M.S.I. 70 TX

3-wood: TaylorMade Qi35 (15 degrees)
Shaft: Fujikura Ventus Blue 7 X

7-wood: TaylorMade Qi35 (21 degrees)
Shaft: Fujikura Ventus Blue 8 X

Irons: Grindworks PR-202 (4), Grindworks PR-101A (5-PW)
Shafts: True Temper Dynamic Gold Tour Issue X100

Wedges: Cleveland RTX6 Tour Rack (52-10 Mid), Titleist Vokey Design SM10 (56-08M), SM11 (60-04T)
Shafts: True Temper Dynamic Gold Tour Issue S400

Putter: Scotty Cameron Tour Rat 1.5 Tour Prototype

Ball: Titleist Pro V1x

Grips: Golf Pride MCC

See more photos of Patrick Reed’s clubs here.

Equipment

Which of Tiger’s major winning irons are your favorite? – GolfWRXers discuss

Published

2 weeks ago

May 18, 2026

Gianni Magliocco

In our forums, our members have been discussing their favorite major winning irons used by Tiger Woods. WRXer ‘golferdude54’ kicks off the thread saying:

“Mizuno MP 14/29. Titleist 681T. Nike Forged Blades. TaylorMade P7TW.

Among these irons that helped Tiger win 15 majors, which is your favorite in terms of looks?”

And our members have been naming their favorites and why in response.

Here are a couple of posts from the thread, but make sure to check out the entire discussion and have your say at the link below.

SwingBlade: “I prefer the early blades he played and the more recent TM TW’s especially because after Tiger had his major behavioral setbacks, part of Nikes support payback was making Tiger play a Nike putter and cease using his beloved uniquely customized Scotty putter.”
ProjectX: “This (Nike Forged Blades) and there’s not even a close second.”

Entire Thread: “Which of Tiger’s major winning irons are your favorite? – GolfWRXers discuss”