Twenty U.S. Golf Courses Hit the 155 Slope Ceiling
Data snapshot: Course and tee records analyzed August 12, 2026; access classifications corrected August 13, 2026

A list that calls one course No. 1 on slope alone is pretending the scale has more resolution than it does. It stops at 155—and 20 U.S. course records in our cleaned snapshot are already there.
The honest result is a tie
Slope rating answers a narrow question: how much more difficult is a set of tees for a bogey golfer than for a scratch golfer? It is not a universal difficulty score, and 155 is its ceiling. Once several tees hit that ceiling, slope cannot distinguish among them.
That is why the table below does not number the courses from one to 20. We sort the tied records by course rating relative to par only to add context. Course rating estimates the score a scratch golfer would be expected to shoot under normal conditions. It is useful alongside slope, but it measures something different.
Each access label links to the official club, membership, guest, or booking source used in the August 13 correction.
| Course | Access | Tee | Yards | Par | Rating | Slope | Rating vs. par |
|---|---|---|---|---|---|---|---|
| Pfau Indiana University Golf CourseIN | Public | Tournament | 7,908 | 71 | 80.2 | 155 | +9.2 |
| Oak Tree NationalOK | Private | Black | 7,504 | 71 | 79.2 | 155 | +8.2 |
| Blessings Golf ClubAR | Private | Black-M | 7,925 | 73 | 80.9 | 155 | +7.9 |
| Rich Harvest Farms Golf CourseIL | Private | Professional | 7,715 | 72 | 79.8 | 155 | +7.8 |
| Pikewood National Golf ClubWV | Private | Back | 7,681 | 72 | 79.7 | 155 | +7.7 |
| Maridoe Golf ClubTX | Private | Plates | 7,854 | 72 | 79.6 | 155 | +7.6 |
| Butler National Golf ClubIL | Private | Butler | 7,523 | 71 | 78.4 | 155 | +7.4 |
| Kiawah Island Golf Resort - The Ocean CourseSC | Resort | Championship | 7,820 | 72 | 79.1 | 155 | +7.1 |
| The Golf Club of New EnglandNH | Private | Black | 7,673 | 72 | 79.0 | 155 | +7.0 |
| Trump National Golf Club PhiladelphiaNJ | Private | Back | 7,197 | 70 | 76.6 | 155 | +6.6 |
| Bethpage BlackNY | Municipal | Blue | 7,465 | 71 | 77.5 | 155 | +6.5 |
| The Honors CourseTN | Private | Silver | 7,694 | 72 | 78.3 | 155 | +6.3 |
| Muirfield Village Golf ClubOH | Private | Memorial | 7,531 | 72 | 77.3 | 155 | +5.3 |
| TPC SawgrassFL | Resort | TPC | 7,271 | 72 | 76.8 | 155 | +4.8 |
| Ballyhack Golf ClubVA | Private | Big Lick | 7,294 | 72 | 76.3 | 155 | +4.3 |
| Trump International Golf ClubFL | Private | Black | 7,210 | 72 | 76.3 | 155 | +4.3 |
| Kiawah Island Club - River CourseSC | Private | Gold | 7,068 | 72 | 76.1 | 155 | +4.1 |
| LedgeRock Golf ClubPA | Private | Rock | 7,241 | 72 | 76.0 | 155 | +4.0 |
| Musgrove Mill Golf ClubSC | Private | Walnut | 6,863 | 72 | 74.4 | 155 | +2.4 |
| Carolina Country ClubSC | Private | Black | 6,929 | 72 | 73.5 | 155 | +1.5 |
The most surprising line is in Indiana
The Tournament tees at Pfau Indiana University Golf Course pair the maximum 155 slope with a course rating of 80.2 against par 71. That 9.2-stroke gap is the largest in this tied set. It is a much more specific statement than “hardest course”: the record describes one set of tees, for defined scratch- and bogey-golfer reference points.
At the other end of the same 155 group, the Black tees at The Carolina Country Club show a 73.5 course rating against par 72. The shared slope does not mean the two tees have the same expected score for a scratch golfer. It means the relative jump in difficulty from scratch to bogey reference golfers reaches the top of the scale in both cases.
Only four of the 20 are publicly accessible
Pfau Indiana University Golf Course, Bethpage Black, the Ocean Course, and TPC Sawgrass are the public, municipal, or resort-access entries in this set. The other 16 are private clubs. Even at the four accessible courses, tournament tees may not be offered for ordinary daily play, so the table describes rating records rather than booking availability.
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