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Chessmetrics Player Profile: Robert Byrne
   Born:    1928-Apr
   Best World Rank:    #11 (5 different months between the October 1973 rating list and the September 1974 rating list )
   Highest Rating:    2720 on the January 1974 rating list, #11 in world, age 45y9m
   Best Individual Performance:    2793 in Leningrad (Interzonal), 1973, scoring 12.5/17 (74%) vs 2653-rated opposition
  Graph   Best Performances   Career Details   Event Details   Ratings only
    Event Name  Rating   Performance   Overall Results   Actual Results vs Rated Opponents   +/- Predicted 
    Ventnor City, 1945  not rated on January 1945 list   -   -1 (4/9, 44%)   no games vs rated opposition   N/A 
    US op Pittsburgh, 1946  not rated on January 1946 list   [2480]   +6 (11.5/17, 68%)   = (2/4, 50%) vs 2488-rated opposition   N/A 
    YUG-USA m radio USA, 1950  not rated on January 1950 list   [2464]   = (1/2, 50%)   = (1/2, 50%) vs 2482-rated opposition   N/A 
    New York (Wertheim Memorial), 1951  not rated on January 1951 list   2630   +1 (6/11, 55%)   +1 (6/11, 55%) vs 2616-rated opposition   N/A 
    Helsinki ol (Men), 1952  2586 (#54 on August 1952 list)   2656   +6 (10.5/15, 70%)   +3 (6.5/10, 65%) vs 2589-rated opposition   +1.5 
    USA-URS New York, 1954  2619 (#42 on June 1954 list)   [2617]   -1 (1.5/4, 38%)   -1 (1.5/4, 38%) vs 2730-rated opposition   =0.0 
    URS-USA Moscow, 1955  2596 (#65 on June 1955 list)   [2568]   -3 (0.5/4, 13%)   -3 (0.5/4, 13%) vs 2769-rated opposition   -0.7 
    USA-op, 1957  not rated on January 1957 list   [2438]   = (0.5/1, 50%)   = (0.5/1, 50%) vs 2452-rated opposition   N/A 
    New York (USA Championship), 1958  not rated on December 1958 list   2516   -3 (4/11, 36%)   -3 (3/9, 33%) vs 2611-rated opposition   N/A 
    New York (USA Championship), 1959  2498 (#210 on January 1959 list)   2662   +5 (8/11, 73%)   +4 (7/10, 70%) vs 2565-rated opposition   +2.8 
    Leipzig ol (Men) fin-A, 1960  2566 (#79 on October 1960 list)   2689   +5 (6.5/8, 81%)   +5 (6.5/8, 81%) vs 2555-rated opposition   +2.4 
    Leipzig ol (Men) qual-D, 1960  2566 (#79 on October 1960 list)   [2569]   +4 (5.5/7, 79%)   +2 (3/4, 75%) vs 2504-rated opposition   +0.7 
    New York (USA Championship), 1960  2645 (#29 on December 1960 list)   2509   -3 (4/11, 36%)   -3 (3/9, 33%) vs 2603-rated opposition   -1.9 
    Mar del Plata, 1961  2621 (#42 on January 1961 list)   2664   +8 (11.5/15, 77%)   +7 (10.5/14, 75%) vs 2509-rated opposition   +1.7 
    Santa Fe, 1961  2621 (#42 on January 1961 list)   2707   +6 (6.5/7, 93%)   +6 (6.5/7, 93%) vs 2531-rated opposition   +2.3 
    USA-ch New York, 1961  2621 (#42 on January 1961 list)   2588   +3 (7/11, 64%)   +2 (4.5/7, 64%) vs 2535-rated opposition   +0.3 
    POL-USA Warsaw, 1962  2644 (#26 on September 1962 list)   [2359]   -1 (0/1, 0%)   -1 (0/1, 0%) vs 2411-rated opposition   -0.8 
    Varna ol (Men), 1962  2644 (#26 on September 1962 list)   2544   +3 (7.5/12, 63%)   +1 (5.5/10, 55%) vs 2514-rated opposition   -1.0 
    New York (USA Championship), 1962  2620 (#39 on December 1962 list)   2591   +1 (6/11, 55%)   = (4/8, 50%) vs 2610-rated opposition   -0.1 
    New York (USA Championship), 1963  2608 (#49 on December 1963 list)   2592   = (5.5/11, 50%)   = (5/10, 50%) vs 2603-rated opposition   -0.1 
    Buenos Aires, 1964  2608 (#50 on January 1964 list)   2659   +6 (11.5/17, 68%)   +5 (10.5/16, 66%) vs 2557-rated opposition   +1.5 
    US op Boston, 1964  2608 (#50 on January 1964 list)   [2509]   +1 (2/3, 67%)   -1 (0/1, 0%) vs 2651-rated opposition   -0.4 
    Illinois op, 1965  2604 (#50 on January 1965 list)   -   +2 (2/2, 100%)   no games vs rated opposition   N/A 
    National op Las Vegas, 1965  2604 (#50 on January 1965 list)   -   = (0.5/1, 50%)   no games vs rated opposition   N/A 
    US op San Juan, 1965  2604 (#50 on January 1965 list)   [2504]   +1 (2/3, 67%)   -1 (0/1, 0%) vs 2642-rated opposition   -0.5 
    New York (USA Championship), 1965  2604 (#50 on January 1965 list)   2676   +4 (7.5/11, 68%)   +4 (6.5/9, 72%) vs 2579-rated opposition   +1.7 
    New York (USA Championship), 1966  2627 (#38 on January 1966 list)   2530   -2 (4.5/11, 41%)   -2 (4/10, 40%) vs 2588-rated opposition   -1.5 
    La Habana ol (Men) fin-A Havana, 1966  2588 (#73 on October 1966 list)   2579   -1 (4.5/10, 45%)   -1 (4.5/10, 45%) vs 2617-rated opposition   -0.2 
    La Habana ol (Men) prel Havana, 1966  2588 (#73 on October 1966 list)   [2429]   +1 (2/3, 67%)   = (1/2, 50%) vs 2430-rated opposition   -0.4 
    Sarajevo, 1967  2578 (#80 on January 1967 list)   2667   +4 (9.5/15, 63%)   +4 (9/14, 64%) vs 2584-rated opposition   +2.1 
    US op Atlanta, 1967  2578 (#80 on January 1967 list)   [2556]   +7 (9.5/12, 79%)   +1 (2.5/4, 63%) vs 2540-rated opposition   +0.3 
    Sousse (Interzonal), 1967  2614 (#58 on October 1967 list)   2552   -7 (7.5/22, 34%)   -6 (7/20, 35%) vs 2641-rated opposition   -2.4 
    USA op Aspen, 1968  2578 (#83 on January 1968 list)   [2617]   +4 (6/8, 75%)   = (0.5/1, 50%) vs 2738-rated opposition   +0.2 
    Monte Carlo, 1968  2578 (#87 on April 1968 list)   2672   +3 (8/13, 62%)   +2 (7/12, 58%) vs 2637-rated opposition   +1.8 
    Reykjavik, 1968  2601 (#63 on June 1968 list)   2531   +4 (9/14, 64%)   -1 (4/9, 44%) vs 2565-rated opposition   -0.9 
    USA-ch New York, 1968  2595 (#64 on September 1968 list)   2626   +5 (8/11, 73%)   +2 (5/8, 63%) vs 2583-rated opposition   +0.9 
    Lugano ol (Men), 1968  2601 (#59 on October 1968 list)   2563   +3 (7.5/12, 63%)   +2 (5.5/9, 61%) vs 2506-rated opposition   =0.0 
    Amsterdam (IBM), 1969  2592 (#70 on January 1969 list)   2659   +2 (8.5/15, 57%)   +3 (8.5/14, 61%) vs 2598-rated opposition   +1.6 
    New York (USA Championship), 1969  2592 (#70 on January 1969 list)   2511   -2 (4.5/11, 41%)   -2 (3.5/9, 39%) vs 2572-rated opposition   -1.2 
    Ljubljana (Vidmar Memorial), 1969  2592 (#70 on January 1969 list)   2623   +2 (8.5/15, 57%)   +2 (8/14, 57%) vs 2579-rated opposition   +0.8 
    US-op Lincoln, 1969  2599 (#61 on August 1969 list)   [2512]   +7 (9/11, 82%)   +1 (1.5/2, 75%) vs 2482-rated opposition   +0.2 
    San Juan, 1969  2599 (#63 on October 1969 list)   2545   = (7.5/15, 50%)   -2 (4/10, 40%) vs 2606-rated opposition   -0.9 
    Greater Chicago op Chicago, 1970  2602 (#64 on January 1970 list)   -   +3 (3.5/4, 88%)   no games vs rated opposition   N/A 
    Lugano, 1970  2602 (#64 on January 1970 list)   2631   = (7/14, 50%)   = (7/14, 50%) vs 2637-rated opposition   +0.6 
    US op Boston, 1970  2602 (#64 on January 1970 list)   [2617]   = (0.5/1, 50%)   = (0.5/1, 50%) vs 2739-rated opposition   +0.2 
    Hastings, 1970  2606 (#64 on December 1970 list)   2539   -2 (3.5/9, 39%)   -2 (3/8, 38%) vs 2616-rated opposition   -0.9 
    Cork op, 1971  2606 (#61 on January 1971 list)   [2368]   +1 (3/5, 60%)   -1 (0/1, 0%) vs 2425-rated opposition   -0.7 
    Moscow (Alekhine Memorial), 1971  2600 (#72 on November 1971 list)   2703   +1 (9/17, 53%)   +1 (9/17, 53%) vs 2691-rated opposition   +2.3 
    Hastings, 1971  2616 (#53 on December 1971 list)   2675   +4 (9.5/15, 63%)   +3 (8.5/14, 61%) vs 2617-rated opposition   +1.5 
    USA-ch New York, 1972  2644 (#36 on January 1972 list)   2632   +5 (9/13, 69%)   +2 (4.5/7, 64%) vs 2591-rated opposition   +0.6 
    Skopje ol (Men) fin-A, 1972  2646 (#37 on September 1972 list)   2641   +2 (6/10, 60%)   +2 (6/10, 60%) vs 2601-rated opposition   +0.5 
    Skopje ol (Men) prel, 1972  2646 (#37 on September 1972 list)   [2480]   +3 (3.5/4, 88%)   +1 (1.5/2, 75%) vs 2435-rated opposition   =0.0 
    USA-ch playoff Chicago, 1973  2654 (#34 on January 1973 list)   [2664]   +2 (3/4, 75%)   +2 (3/4, 75%) vs 2635-rated opposition   +0.9 
    Leningrad (Interzonal), 1973  2663 (#31 on June 1973 list)   2793   +8 (12.5/17, 74%)   +8 (12.5/17, 74%) vs 2653-rated opposition   +3.8 
    Byrne-Spassky Match (Candidates quarterfinal, San Juan), 1974  2720 (#11 on January 1974 list)   2576   -3 (1.5/6, 25%)   -3 (1.5/6, 25%) vs 2731-rated opposition   -1.4 
    Nice ol (Men) fin-A, 1974  2712 (#12 on June 1974 list)   2643   +2 (6/10, 60%)   +2 (6/10, 60%) vs 2604-rated opposition   -0.3 
    Nice ol (Men) prel, 1974  2712 (#12 on June 1974 list)   [2567]   +6 (6/6, 100%)   +2 (2/2, 100%) vs 2494-rated opposition   +0.5 
    Oberlin (USA Championship), 1975  2700 (#14 on January 1975 list)   2589   +1 (7/13, 54%)   +1 (6/11, 55%) vs 2567-rated opposition   -1.2 
    Montilla Moriles, 1975  2685 (#21 on August 1975 list)   [2428]   -4 (0/4, 0%)   -4 (0/4, 0%) vs 2629-rated opposition   -2.3 
    Moscow, 1975  2637 (#53 on October 1975 list)   2590   -3 (6/15, 40%)   -3 (6/15, 40%) vs 2653-rated opposition   -1.2 
    Torremolinos, 1976  2608 (#72 on January 1976 list)   [2559]   +2 (2.5/3, 83%)   +2 (2.5/3, 83%) vs 2487-rated opposition   +0.6 
    Las Palmas, 1976  2605 (#79 on April 1976 list)   2668   +4 (9.5/15, 63%)   +4 (9/14, 64%) vs 2585-rated opposition   +1.7 
    Biel (Interzonal), 1976  2621 (#63 on July 1976 list)   2709   +4 (11.5/19, 61%)   +4 (11.5/19, 61%) vs 2640-rated opposition   +2.4 
    Montilla, 1976  2640 (#50 on August 1976 list)   2591   +1 (5/9, 56%)   +1 (5/9, 56%) vs 2572-rated opposition   -0.2 
    Haifa ol (Men), 1976  2645 (#47 on November 1976 list)   2615   +4 (7/10, 70%)   +2 (5/8, 63%) vs 2569-rated opposition   +0.3 
    IRL-ch Cork, 1977  2652 (#39 on January 1977 list)   -   = (0.5/1, 50%)   no games vs rated opposition   N/A 
    Geneve, 1977  2647 (#45 on April 1977 list)   2593   -1 (6/13, 46%)   -1 (6/13, 46%) vs 2619-rated opposition   -0.9 
    Montilla, 1977  2634 (#58 on August 1977 list)   2588   +1 (5/9, 56%)   +1 (5/9, 56%) vs 2568-rated opposition   -0.2 
    USA-ch Mentor, 1977  2634 (#58 on August 1977 list)   2627   +4 (8.5/13, 65%)   +4 (8/12, 67%) vs 2531-rated opposition   +0.5 
    Bugojno, 1978  2642 (#53 on February 1978 list)   2626   -3 (6/15, 40%)   -3 (6/15, 40%) vs 2694-rated opposition   -0.6 
    Pasadena (USA Championship), 1978  2637 (#49 on June 1978 list)   2565   = (7/14, 50%)   = (7/14, 50%) vs 2559-rated opposition   -1.3 
    Buenos Aires ol (Men), 1978  2628 (#61 on October 1978 list)   2560   = (4/8, 50%)   = (3/6, 50%) vs 2582-rated opposition   -0.3 
    London BBC TV-A, 1979  2627 (#64 on January 1979 list)   [2586]   -1 (0.5/2, 25%)   -1 (0.5/2, 25%) vs 2736-rated opposition   -0.2 
    Sao Paulo, 1979  2627 (#63 on February 1979 list)   2572   = (6.5/13, 50%)   = (6.5/13, 50%) vs 2570-rated opposition   -0.9 
    Amsterdam (IBM), 1979  2614 (#75 on July 1979 list)   2636   +1 (7/13, 54%)   +1 (7/13, 54%) vs 2620-rated opposition   +0.6 
    Baden Vienna, 1980  2612 (#77 on January 1980 list)   2685   +3 (9/15, 60%)   +3 (9/15, 60%) vs 2629-rated opposition   +1.8 
    Reykjavik, 1980  2612 (#77 on January 1980 list)   2554   -1 (4/9, 44%)   -1 (4/9, 44%) vs 2592-rated opposition   -0.7 
    Wijk aan Zee (Hoogovens), 1980  2612 (#77 on January 1980 list)   2596   = (6.5/13, 50%)   = (6.5/13, 50%) vs 2597-rated opposition   -0.2 
    USA-ch Greenville, 1980  2609 (#84 on June 1980 list)   2544   -2 (5/12, 42%)   -1 (5/11, 45%) vs 2570-rated opposition   -1.0 
    USA-ch/zt South Bend, 1981  2597 (#95 on July 1981 list)   2592   = (7/14, 50%)   = (7/14, 50%) vs 2590-rated opposition   -0.1 
    Reykjavik op, 1982  2597 (#110 on February 1982 list)   2578   +3 (7/11, 64%)   +3 (6.5/10, 65%) vs 2495-rated opposition   +0.3 
    New York Kavkasian, 1983  2600 (#104 on September 1983 list)   2613   +3 (8.5/14, 61%)   +3 (8.5/14, 61%) vs 2544-rated opposition   +0.6 
    Reykjavik op, 1984  2610 (#98 on February 1984 list)   2477   +2 (6.5/11, 59%)   -1 (3.5/8, 44%) vs 2503-rated opposition   -1.5 
    New York (Open), 1984  2579 (#164 on April 1984 list)   [2402]   -1 (0/1, 0%)   -1 (0/1, 0%) vs 2479-rated opposition   -0.6 
    Berkeley (USA Championship), 1984  2582 (#173 on July 1984 list)   2620   = (8.5/17, 50%)   +1 (8.5/16, 53%) vs 2597-rated opposition   +0.8 
    World op Philadelphia, 1985  2572 (#193 on January 1985 list)   [2531]   +2 (2.5/3, 83%)   +1 (1/1, 100%) vs 2516-rated opposition   +0.4 
    New York op, 1985  2570 (#210 on March 1985 list)   [2410]   +1 (3/5, 60%)   -1 (0/1, 0%) vs 2492-rated opposition   -0.6 
    Nordic-USA Reykjavik, 1986  2577 (#187 on January 1986 list)   [2531]   = (1/2, 50%)   = (1/2, 50%) vs 2582-rated opposition   =0.0 
    Reykjavik (Open), 1986  2572 (#193 on February 1986 list)   2580   +1 (6/11, 55%)   -1 (4/9, 44%) vs 2625-rated opposition   +0.1 
    New York op, 1986  2576 (#186 on March 1986 list)   [2362]   = (1/2, 50%)   -1 (0/1, 0%) vs 2415-rated opposition   -0.7 
    New York (Open), 1987  2547 (#277 on April 1987 list)   2512   = (5.5/11, 50%)   -1 (3/7, 43%) vs 2553-rated opposition   -0.4 
    Philadelphia op, 1987  2527 (#335 on June 1987 list)   [2535]   +2 (4/6, 67%)   = (2/4, 50%) vs 2564-rated opposition   +0.2 
    New York (Open), 1988  2549 (#271 on March 1988 list)   2499   +1 (5/9, 56%)   = (3/6, 50%) vs 2503-rated opposition   -0.3 
    World op Philadelphia, 1988  2553 (#267 on June 1988 list)   [2477]   +1 (3/5, 60%)   -2 (0/2, 0%) vs 2643-rated opposition   -0.8 
    Philadelphia (Open), 1989  2518 (#453 on June 1989 list)   [2453]   +2 (5.5/9, 61%)   -1 (1.5/4, 38%) vs 2504-rated opposition   -0.6 
    US op Chicago, 1989  2491 (#609 on August 1989 list)   [2488]   +5 (7/9, 78%)   -1 (0.5/2, 25%) vs 2588-rated opposition   -0.3 
    Palma de Mallorca (Open), 1989  2477 (#705 on December 1989 list)   2496   = (4.5/9, 50%)   -2 (2.5/7, 36%) vs 2572-rated opposition   -0.2 
    Murcia op, 1990  2465 (#797 on January 1990 list)   [2539]   -1 (0/1, 0%)   -1 (0/1, 0%) vs 2698-rated opposition   -0.2 
    USA op, 1990  2465 (#797 on January 1990 list)   [2468]   +5 (8/11, 73%)   = (1.5/3, 50%) vs 2478-rated opposition   =0.0 
    New York (Open), 1990  2466 (#767 on April 1990 list)   2601   = (4.5/9, 50%)   = (4.5/9, 50%) vs 2618-rated opposition   +1.6 
    World op Philadelphia, 1990  2507 (#525 on June 1990 list)   [2461]   +1 (5/9, 56%)   -2 (0/2, 0%) vs 2619-rated opposition   -0.7 
    New York (Open), 1991  2472 (#751 on March 1991 list)   [2543]   +1 (4.5/8, 56%)   -1 (0/1, 0%) vs 2704-rated opposition   -0.2 
    London, 1991  2478 (#740 on May 1991 list)   2584   = (6.5/13, 50%)   = (6.5/13, 50%) vs 2584-rated opposition   +1.6 
    World op Philadelphia, 1991  2515 (#512 on July 1991 list)   -   = (1.5/3, 50%)   no games vs rated opposition   N/A 
    Interprovincials IRL, 1992  2513 (#522 on January 1992 list)   -   -1 (0/1, 0%)   no games vs rated opposition   N/A 
    Philadelphia (Open), 1992  2510 (#482 on June 1992 list)   [2575]   +1 (4.5/8, 56%)   = (2/4, 50%) vs 2618-rated opposition   +0.5 
    New York op, 1994  2494 (#556 on March 1994 list)   [2441]   +2 (5.5/9, 61%)   -2 (1/4, 25%) vs 2542-rated opposition   -0.8 
    World op Philadelphia, 1994  2481 (#644 on June 1994 list)   [2523]   -1 (1.5/4, 38%)   -1 (1.5/4, 38%) vs 2601-rated opposition   +0.1 
    USA-op Chicago, 1994  2488 (#610 on August 1994 list)   [2319]   +5 (8.5/12, 71%)   -1 (0.5/2, 25%) vs 2334-rated opposition   -0.9 
    IRL-ch, 1995  2487 (#647 on January 1995 list)   -   +1 (3.5/6, 58%)   no games vs rated opposition   N/A 
    World op Philadelphia, 1998  not rated on June 1998 list   [2371]   +3 (3/3, 100%)   +1 (1/1, 100%) vs 2260-rated opposition   N/A 
    New York State-ch Saratoga Springs, 2000  not rated on September 2000 list   [2332]   +1 (2.5/4, 63%)   -1 (0.5/2, 25%) vs 2355-rated opposition   N/A