Peter Jacobsen’s hip didn’t allow him to walk three months ago. But on Sunday, he was able to withstand heat and two rounds of make-up golf to win the U.S. Senior Open at Bellerive Country Club in St. Louis. Jacobsen finished at 12-under par, besting St. Louisan Hale Irwin by one stroke. Jacobsen had hip surgery three months ago. With rain pushing play all weekend, competitors were forced to play two rounds on Sunday and Jacobsen shined, shooting 69-68 on his shaky hip. Kansas City native Tom Watson finished tied for 25th at 3-over.