The last time the USGA came to Oakmont, they didn't speed the greens up — they told the club to SLOW them down. Oakmont's Poa annua greens sit past the limit at rest, and setup is about walking them back.
Here's the mechanism: from the Stimpmeter's 1935 birth at Oakmont, to the 2007 US Open the USGA had to slow, to 536 three-putts at 14.5 feet in 2025 — and why Augusta National spends its way to the same edge that Oakmont's clay-and-Poa reaches for free. This is Episode 3 of the USGA green-speed series. Episodes 1 & 2 build the mechanism this video pays off — watch them first if you haven't.
⏱️ CHAPTERS 0:00 The one course the USGA slows down 1:00 The inverse USGA setup: Oakmont vs. Shinnecock 2:00 The defensible threshold mechanism 3:00 Oakmont, 1903: The clay ridge and perennial Poa annua 4:00 Why Poa on clay runs fast: 6-inch roots and thin blades 5:00 The Stimpmeter origin story: 1935 and Gene Sarazen 6:00 2007 US Open: The first documented slowdown 7:00 2025 US Open: 14.5 feet and 536 three-putts 8:00 Augusta National's SubAir vs. Oakmont's resting state 9:00 The series conclusion: How the biology runs your course
Watch the full documentary: youtu.be/54nYbTQ5DLM