FlagHi Calculates How Changing Conditions Affect Golf Shot Distances
FlagHi calculations are coming soon as a low-cost online service
What is FlagHi?
Created by Golfers for Golfers
Conditions Affect Golf Shot Distances
Conditions Affect Golf Shot Distances
After a 2013 guys trip to Bandon Dunes where cool, sea-level conditions added guesswork to club selection, we just knew we had to try to solve this 300 year-old problem in golf. Nine months later, after beta testing with D1 golf teams, we launched FlagHi.
Conditions Affect Golf Shot Distances
Conditions Affect Golf Shot Distances
Conditions Affect Golf Shot Distances
Temperature, elevation, and humidity affect golf shot distances. Golfers intuitively know that when conditions change, their stock carry numbers change. FlagHi was the first app to best calculate how much they change.
There's No Place Like Home
Conditions Affect Golf Shot Distances
When & Where Are You Playing?
FlagHi baselines your stock carry numbers to your typical "Home" conditions. It sounds so simple, but it's super important. How far you hit a club is driven in large part by where you are. You can test this by playing in San Diego then playing in Lake Tahoe.
When & Where Are You Playing?
FlagHi's Condition Differential Effects
When & Where Are You Playing?
You provide us with the date and location of your future round. We plug these "Away" conditions (temperature, elevation, humidity) into the FlagHi algorithms. It's helpful even at your home course, since playing conditions can change from morning to afternoon and from season to season.
FlagHi's Condition Differential Effects
FlagHi's Condition Differential Effects
FlagHi's Condition Differential Effects
The effects of changes between each "Home" and "Away" condition are calculated, then netted into an overall "Condition Differential Effect". It's important to net, because you might be playing at higher elevation than usual (which helps carry), but on a day that's cooler than usual (which hurts carry).
The FlagHi Report
FlagHi's Condition Differential Effects
FlagHi's Condition Differential Effects
We generate a report that shows all your new carry distances. Print the report or simply write your new distances in your yardage book.
FlagHi Report (Real-world Example)
The image is an actual FlagHi report we prepared for a professional golfer - and early FlagHi customer - who was playing at the 2025 US Mid Amateur in Scottsdale, AZ.
Key components:
- Home conditions
- Current conditions
- Table showing both stock and FlagHi-adjusted carry distances
Who Does FlagHi Help?
Professional Golfers
Professional Golfers
Professional Golfers
When FlagHi first launched in 2013 it was immediately adopted by pros on every tour and around the world. Why? Because pros play a new location every week. And even AM rounds can differ from PM rounds. Not every pro can afford a $10,000+ launch monitor, but all of them need to know if their iron will clear the hazard.
Golf Caddies
Professional Golfers
Professional Golfers
Caddies' jobs are difficult enough. If FlagHi can tell you that your pro's 8-iron is carrying 4 yards farther this afternoon, it could mean the difference between a win or a loss.
And FlagHi is great for resort caddies, too. Is a guest from Denver (5,280') playing Pinehurst (509')? You'll be a hero if you tell him what his new stock carry numbers are or the distance that a shot "plays" for him or her.
College Players
Professional Golfers
College Players
In golf, the "Home Course Advantage" involves not just course familiarity, but also trust in carry distances. Visiting teams can now calculate what their new distances will be even before they leave home. This further helps with decisions on which club(s) to bring or use for a given round.
Also: playing two rounds today? Generate one FlagHi report using AM conditions, and another with PM conditions.
College Coaches
Your Average Weekend Player
College Players
Play better at home when conditions change. Play better on the road under entirely new playing conditions. Utilize modern technology to win recruits. Be data-driven and help your players with useful insights that improve confidence in club selection and shot execution.
Your Average Weekend Player
Your Average Weekend Player
Your Average Weekend Player
All golfers can benefit from our insights.
One of the FlagHi guys was playing a member-guest in the Palm Springs area in January. Early. Shotgun start. Frost delay. Started on a 161-yard par-3 with a pin 3 paces on, protected by a front bunker. Absolutely had to clear that bunker - but not by much. Entered the conditions into FlagHi, which calculated that 161-yard shot as playing about 166. Instead of hammering an 8i, went instead with a smooth 7i. Knocked it to within 4 feet.
Resorts & Pro Shops
Your Average Weekend Player
Your Average Weekend Player
Knowing how the current conditions affect carry distances adds value in many ways:
- Better club selection = better shots = better scores
- Better shots = faster pace of play
- Better scores = higher CSAT
- Faster pace of play = more F&B sales or pro shop sales #FeelGood
Those Taking Annual Golf Trips
Golf Telecasts, Journalists, Data Geeks
Golf Telecasts, Journalists, Data Geeks
Going on the annual "Guys Trip" or "Girls Trip" and want a competitive edge?
Leaving the drizzle of Bellevue for the spectacular views at PGA West?
Play your best! Know your carry numbers. Pick a shovel with confidence. WIN!
Golf Telecasts, Journalists, Data Geeks
Golf Telecasts, Journalists, Data Geeks
Golf Telecasts, Journalists, Data Geeks
Make "Talking About the Weather" interesting and relevant.
- "Shots are carrying 3.5% farther this week than last..."
- "Phil has the hometown advantage over Jason, who's used to playing in Tahoe ... not Torrey..."
- "That shat measures 168, but for Daniel it plays 174 since he's used to playing in Spokane..."
Next Steps
We Are Reimagining FlagHi as an Online Service
We are planning to relaunch FlagHi as an online service. We would like to hear from you to understand who's interested and why. Based on your response, we might even relaunch the FlagHi Golf App on the app stores.
Join the FlagHi Mailing List
Fill in the form (below) and be the first to hear updates.
If You Need FlagHi Reports NOW - Let Us Know
We've been calculating since 2013. If you (or your coach / team / caddies / etc.) needs help, let us know what's going in via the contact form and we'll do our best to get in touch quickly.