U.S. Championships
Fischer played in eight U.S. Chess Championships, each held in New York City, winning every one. His margin of victory was always at least one point.
His scores were:
- 1957–58: 10½/13
- 1958–59: 8½/11
- 1959–60: 9/11
- 1960–61: 9/11
- 1962–63: 8/11
- 1963–64: 11/11
- 1965–66: 8½/11
- 1966–67: 9½/11
Fischer missed the 1961–62 Championship (he was preparing for the upcoming Interzonal), and there was no 1964–65 event. His total score was 74/90 (61 wins, 26 draws, 3 losses), with the only losses being to Edmar Mednis, Samuel Reshevsky, and Robert Byrne. For his career, he achieved 82.2 percent in the U.S. Championship.
His 11–0 win in the 1963–64 Championship is the only perfect score in the history of the tournament, and one of about ten perfect scores in high-level chess tournaments ever. David Hooper and Kenneth Whyld called it "the most remarkable achievement of this kind."
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