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The 1969 U.S. Pro Tennis Championships – Singles was an event of the 1969 U.S. Pro Tennis Championships men's tennis tournament played on outdoor hard courts at the Longwood Cricket Club in Boston, United States from July 9 through July 15, 1969. First-seeded Rod Laver was the defending champion and regained his singles title, defeating second-seeded John Newcombe in the final, 7–5, 6–2, 4–6, 6–1.