I had a summer job at a course where my mentors just out of school (Killian and Nugent) had been doing 1-2 greens per year. My boss (the superintendent) pointed out the flaw in their design for the 6th green. It was less than 40 feet wide, which, after subtracting the 12-15 foot minimum they wanted to put the pin from the left or right edge, left 10 feet, or basically one pin wide.
Had the green been a bit wider, they could have at least moved the front, middle, and back pins left and right, i.e.,
- two buffer zones of 12-15 feet (24-30 total)
- Two pin settings 8 foot diameter (the super used the standard 8ft flagstick as his measuring device for the minimum space between two cup locations, or 16 feet
- 2-3 feet each side for collars, for 4-6 feet
That puts the minimum width (or depth on a shallow green) at 44 to 52 feet total, at least on a higher play course.
I have measured the damaged areas around a cup setting, and they are 3-4 feet radius circles, but closer to 4 feet on busy courses, so the flagstick measurement makes sense to me.
If you want to figure some of the eventual growth inwards.....maybe as wide as Nebraska, I don't know, LOL.