Out There
On-Course Rules
Rangefinders, slope, GPS, training aids. What you can point at a flag and what you can't.
One principle settles nearly all of it: information is fine, anything that makes the decision for you is not. "152 yards" is information. "Plays like 164" did your thinking, and that's the breach. Everything below is that idea applied to a specific gadget.
More pages in this section are in production — see the content roadmap for what is coming.