How Does FlagHi Work?

FlagHi baselines your stock carry numbers to your typical "Home" conditions. 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. Step 1 is to list your clubs and - for each club - provide your "stock" carry distance.

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.

The effects of changes between each "Home" and "Away" condition are calculated, then netted into an overall value we refer to as the FlagHi Condition Differential Effect. It is important to use this net calculation, because you might be playing a round that is at an elevation above sea level that is higher than normal (which adds to / "helps" carry) but on a day that is cooler than normal (which takes away from / "hurts" carry). By netting it all out, FlagHi simplifies club selection for you. Which in turn improves confidence, and can lead to lower scores. See this example of a FlagHi Condition Differential Report we created for a pro golfer at the 2025 US MidAm.