6 figures decide the course boards. 5 of them are a single published number, and the page each one sits on says who published it.
The other — highest above sea level — is one we measure from public federal data, labelled as derived wherever it appears. Nothing here is estimated, averaged, or scored by hand.
The figures
- Longest
- The longest tee set the course publishes, in yards from the tips. Compared against every course that publishes a scorecard — length is a measurement, not a verdict on the golf.
- Toughest test
- The highest USGA slope rating published for any of the men’s tee sets. Slope rates difficulty for a bogey golfer relative to a scratch golfer — a rated figure issued by the golf association, not an opinion about the course. Men’s ratings only, because a tee is rated separately for men and for women and the two scales do not compare; a course rated only for women is not in the running rather than converted.
- Hardest from the tips
- The highest USGA course rating published for any of the men’s tee sets — the score a scratch golfer is expected to shoot. Men’s ratings only, for the same reason as slope: the men’s and women’s ratings of one tee are different measurements. It measures difficulty and nothing else; it is not a quality score and never orders these pages by how good a course is.
- Widest tee spread
- Yards between the longest and shortest published tee sets — how far the course moves to fit a different player. Courses publishing a single tee set are not in the running, because one set is an unmeasured spread rather than a narrow one.
- Oldest
- The year the course opened, as published. Ranked oldest first. An opening year is not a design credit and not a renovation date — a course that opened in 1921 and was rebuilt in 1998 still opened in 1921.
- Highest above sea level derived
- Height above sea level at the course’s own published coordinate, sampled from the USGS 3DEP elevation model. THIS IS A FIGURE WE DERIVED, not one the course publishes — anybody can re-query the same public dataset at the same coordinate and get the same number, but no scorecard states it. Because every course carries a coordinate, this is the only board here whose field is nearly the whole database rather than the courses that publish a particular figure. Elevation changes how far a ball carries; it says nothing about whether a course is good.