Cory Jez

PGA tour data and strategy coach, previously: Trailblazers TV analyst, Utah Jazz director of analytics

[Cory Jez @JezData]

I've spent the last 4 years building analytics tools for PGA Tour pros.

Course strategy. Dispersion profiles. Practice plans.

Today I'm launching the same engine for competitive amateurs.

TourIQ iOS app is live in the App Store. Here's what it does 🧵

[Cory Jez @JezData]

@_raymondwill its not reading spin rate correctly. or you're truly hitting kunckleballs but i highly highly doubt that. mats can skew spin rate and lower end LMs aren't great. 7i at 90mph should be like 6000 rpms and with any sort of normal launch condition between 160 and 170 carry.

[Cory Jez @JezData]

👀 🦃

[Josh Delander @Josh_Delander]

Virginia Tech is hiring a Director of Front Office Analytics and Strategy.

“This role will lead the integration of data science and artificial intelligence…providing actionable insights that directly impact financial strategy and competitive advantage.”

[Cory Jez @JezData]

@Fit_For_Golf Nice tip 😉 https://t.co/CTyVI5dbXO

[Cory Jez @JezData]

When is the last time you practiced lag putting? Hint: probably not recently enough.

[Cory Jez @JezData]

"That is where confidence comes from. Not the range. The data."

Well said, Drake. 🤝

[Drake Smith @drakesmith__]

I have caddied on Tour and the Korn Ferry Tour. Here are some things I did for my player that you can use in your own game.

Note the amount of rollout on every green. When you hit an 8 iron, find your divot, walk off the distance to where the ball ended up. Write it down. That information becomes gold later in the round.

Know where you putt best from. A putt that breaks slightly right to left is often easier to manage than a straight one. When you have options on approach, favor the side that gives you the putt you like.

Plan your round the night before. Wind direction is on your weather app right now. If you know your course you can decide how you are going to play each hole before you ever get there. No decision fatigue on the course. You just execute.

Chart your iron shots. Iron you hit. Wind direction. How far it flew. Find your divot, walk it off from where you measured, write down the number. Do it every round for a few months and you will know your distances better than you ever have.

This sounds like a lot. It is at first.

But once you start thinking this way you stop guessing. You stop second guessing your club choice on the 14th hole with water left. You step in with a number you trust and a plan you already made.

That is where confidence comes from.

Not the range. The data.

[Cory Jez @JezData]

@HayzStreams honestly probably the next offseason. spread pretty thin working with players at most of our events. potentially sooner as we onboard more dev resources!

[Cory Jez @JezData]

couldn't agree more Drake!

https://t.co/CTyVI5dbXO

[Drake Smith @drakesmith__]

Want to get better at golf?

Capture the data from you round, even your thoughts, club selections, course management etc.

Roll the data and observations into your next practice session.

Repeat.

This is the process.

[maddy catgirlprostate @catgirlprostate]

Just found out about recency bias, it's gotta be the best and most interesting kind of bias

[Cory Jez @JezData]

Dispersion over everything. If we hit it exactly where we aimed every time, then, well… we’d hit it exactly where we aimed every time.

[LKD @LukeKerrDineen]

My guess is that he was aiming middle, trying to hit the same shot as yesterday, but committed to getting his lower body through it more (unlike yesterday).

Left the face open, but hit it harder + adrenaline cooking.

Accidentally perfect.

[Cory Jez @JezData]

@SheaSerrano its how many times they read basketball (and other things) or what time they are planning on reading it later today.

[Cory Jez @JezData]

@McCadeP8 @mdstrobe correct. no public shotlink data. the @datagolf api is the gold standard for what's available publicly imho

[Tej Seth @tejfbanalytics]

getting asked if any draft prospect will be good in the NFL:

[Cory Jez @JezData]

@DeanO_Lytics once aptly described to me (by the brilliant Zac Robertson of the Miami Heat)... data engineers are the offensive lineman of any well-run analytics organization. absolute necessity with zero praise

[Cory Jez @JezData]

not all metrics stabilize at the same rate. in golf...

Ball speed: probably about this same sample size works.

SG Putting: ummmm we're gonna need some more data.

[sam ehrlich @SamEhrlich]

For everyone saying "small sample" yesterday. It took 7 competitive swings for bat speed to become reliable across 579 batters in 2025.

[Cory Jez @JezData]

@MeghanChayka @GolfTown wow just encroaching on my turf.

[Mike Trudell @LakersReporter]

The Lakers are looking to add to their analytics department:

https://t.co/nHcGlwXCXC

[Cory Jez @JezData]

@CoachJasonPayne @TheHaskinsAward @AHAInvite haha i know what it is. just don't have the time to get off the property unfortunately during the day!

[Cory Jez @JezData]

I've spent the last 4 years building analytics tools for PGA Tour pros.

Course strategy. Dispersion profiles. Practice plans.

Today I'm launching the same engine for competitive amateurs.

TourIQ iOS app is live in the App Store. Here's what it does 🧵

[Cory Jez @JezData]

@CoachJasonPayne there's unfortunately some event in Georgia I need to be at...

[Cory Jez @JezData]

@justins9 This is a great idea and something we will look to add! Screenshots (as long as they have carry and side data) and club should work right now!

[Cory Jez @JezData]

awesome to see people jumping in and building out their dispersion profiles - our launch monitor photo recognition makes this very easy to upload shots into TourIQ and profile your whole bag.

[Vickter Hovgrand @vickterhovgrand]

@JezData Nice, looks like my circle tight and I really need to find something I can hit from 260-290 out.