Getty J. J. Spaun of the United States poses with the trophy after winning during the final round of the 125th U.S. OPEN at Oakmont Country Club on June 15. Oakmont Country Club tested the world’s best under classic U.S. Open brutality: lightning-fast greens, punishing rough, and merciless weather disruptions. But it was J.J. Spaun who stole the spotlight , delivering walk-off magic on a Sunday like no other. Spaun’s winning scorecard: 66-72-69-72 for a total of 279, finishing one under par. U.