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Chessmetrics Player Profile: Nathan Birnboim
   Born:    1950-Nov
   Best World Rank:    #59 (on the December 1981 rating list)
   Highest Rating:    2625 on the January 1982 rating list, #61 in world, age 31y2m
   Best Individual Performance:    2617 in Jerusalem, 1986, scoring 5.5/10 (55%) vs 2602-rated opposition
  (no graph available)   Best Performances   Career Details   Event Details   Ratings only
    Event Name  Rating   Performance   Overall Results   Actual Results vs Rated Opponents   +/- Predicted 
    WchT U26 fin 17th Graz, 1972  not rated on July 1972 list   [2484]   +3 (4.5/6, 75%)   +1 (1.5/2, 75%) vs 2441-rated opposition   N/A 
    Netanya-B, 1973  not rated on January 1973 list   [2386]   -2 (4.5/11, 41%)   -2 (1/4, 25%) vs 2465-rated opposition   N/A 
    WchT U26 Teeside, 1974  not rated on January 1974 list   [2333]   -1 (0/1, 0%)   -1 (0/1, 0%) vs 2369-rated opposition   N/A 
    WchT U26 fin-A Caracas, 1976  not rated on January 1976 list   2461   -2 (2.5/7, 36%)   -2 (1.5/5, 30%) vs 2552-rated opposition   N/A 
    WchT U26 prel-2 Caracas, 1976  not rated on January 1976 list   [2459]   +1 (2.5/4, 63%)   -1 (0/1, 0%) vs 2570-rated opposition   N/A 
    Haifa ol (Men), 1976  2439 (#459 on November 1976 list)   [2470]   +1 (3.5/6, 58%)   +1 (2.5/4, 63%) vs 2422-rated opposition   +0.4 
    Beersheba, 1978  2418 (#523 on February 1978 list)   2507   = (6.5/13, 50%)   -2 (4/10, 40%) vs 2560-rated opposition   +0.7 
    Buenos Aires ol (Men), 1978  2479 (#386 on October 1978 list)   2564   +4 (6/8, 75%)   +3 (5/7, 71%) vs 2465-rated opposition   +1.4 
    EU-chT qual Amsterdam, 1978  2479 (#386 on October 1978 list)   [2487]   +1 (2.5/4, 63%)   = (1.5/3, 50%) vs 2506-rated opposition   +0.1 
    EU-chT (Men) Skara, 1980  2528 (#240 on January 1980 list)   2597   +1 (4/7, 57%)   +1 (4/7, 57%) vs 2585-rated opposition   +1.0 
    Malta ol (Men) La Valetta, 1980  2554 (#165 on November 1980 list)   [2653]   +2 (4.5/7, 64%)   +2 (3/4, 75%) vs 2620-rated opposition   +1.3 
    Biel op, 1981  2592 (#95 on January 1981 list)   [2587]   +5 (5/5, 100%)   +3 (3/3, 100%) vs 2467-rated opposition   +1.1 
    Randers zt-A, 1982  2625 (#61 on January 1982 list)   2377   -5 (2.5/10, 25%)   -5 (2.5/10, 25%) vs 2494-rated opposition   -4.0 
    Beersheba, 1982  2496 (#375 on March 1982 list)   2548   +1 (6.5/12, 54%)   -1 (4.5/10, 45%) vs 2579-rated opposition   +0.5 
    EUchT qual Luzern, 1982  2496 (#375 on March 1982 list)   [2513]   +1 (2.5/4, 63%)   +1 (2.5/4, 63%) vs 2480-rated opposition   +0.4 
    Biel, 1982  2516 (#309 on July 1982 list)   2589   +1 (6/11, 55%)   +1 (5/9, 56%) vs 2570-rated opposition   +1.1 
    Luzern ol (Men), 1982  2534 (#254 on October 1982 list)   2613   +3 (5.5/8, 69%)   +2 (4/6, 67%) vs 2566-rated opposition   +1.2 
    ISR-ch, 1984  2531 (#297 on January 1984 list)   2472   +2 (8.5/15, 57%)   -2 (3/8, 38%) vs 2532-rated opposition   -1.0 
    Thessaloniki ol (Men), 1984  2525 (#355 on November 1984 list)   [2481]   = (3.5/7, 50%)   -1 (1/3, 33%) vs 2558-rated opposition   -0.4 
    Beersheba, 1986  2493 (#484 on January 1986 list)   [2507]   -1 (0/1, 0%)   -1 (0/1, 0%) vs 2648-rated opposition   -0.3 
    ISR-ch, 1986  2493 (#484 on January 1986 list)   2581   +7 (11/15, 73%)   +2 (4/6, 67%) vs 2525-rated opposition   +1.2 
    Berlin op Berlin West, 1986  2524 (#375 on August 1986 list)   [2564]   +3 (3/3, 100%)   +2 (2/2, 100%) vs 2490-rated opposition   +0.9 
    London (Lloyds Bank Open), 1986  2524 (#375 on August 1986 list)   [2397]   -1 (0/1, 0%)   -1 (0/1, 0%) vs 2472-rated opposition   -0.6 
    Jerusalem, 1986  2572 (#203 on November 1986 list)   2617   +1 (6/11, 55%)   +1 (5.5/10, 55%) vs 2602-rated opposition   +0.8 
    Holon op, 1986  2558 (#240 on December 1986 list)   [2419]   +2 (5.5/9, 61%)   -2 (0.5/3, 17%) vs 2530-rated opposition   -1.1 
    ITA-ISR m Trento, 1987  2580 (#194 on January 1987 list)   [2542]   +1 (1.5/2, 75%)   +1 (1.5/2, 75%) vs 2528-rated opposition   +0.4 
    Netanya op, 1987  2580 (#194 on January 1987 list)   2529   +3 (6/9, 67%)   +1 (3.5/6, 58%) vs 2499-rated opposition   -0.1 
    Tel Aviv, 1987  2580 (#194 on January 1987 list)   [2421]   = (5.5/11, 50%)   -1 (1/3, 33%) vs 2472-rated opposition   -0.9 
    Munich (Zonal), 1987  2580 (#194 on January 1987 list)   2583   +1 (7.5/14, 54%)   +1 (7.5/14, 54%) vs 2556-rated opposition   +0.1 
    Beersheba, 1987  2556 (#242 on March 1987 list)   2582   = (5.5/11, 50%)   = (5.5/11, 50%) vs 2587-rated opposition   +0.4 
    London Peace, 1987  2558 (#226 on September 1987 list)   [2382]   -1 (2.5/6, 42%)   -2 (0/2, 0%) vs 2500-rated opposition   -1.1 
    ISR-ch Israel, 1988  2537 (#301 on January 1988 list)   -   = (1/2, 50%)   no games vs rated opposition   N/A 
    Kobanya op, 1988  2537 (#301 on January 1988 list)   [2510]   +1 (2/3, 67%)   +1 (1.5/2, 75%) vs 2480-rated opposition   +0.4 
    Saint John (Open), 1988  2537 (#301 on January 1988 list)   [2402]   -3 (3/9, 33%)   -2 (0/2, 0%) vs 2530-rated opposition   -1.0 
    Tel Aviv, 1988  2525 (#360 on March 1988 list)   2485   -3 (5/13, 38%)   -2 (3.5/9, 39%) vs 2541-rated opposition   -0.8 
    Lugano (Open), 1989  2518 (#443 on March 1989 list)   2462   = (4.5/9, 50%)   -1 (2.5/6, 42%) vs 2497-rated opposition   -0.6 
    EU-chT (Men) Haifa, 1989  2495 (#593 on November 1989 list)   2542   +2 (5/8, 63%)   +1 (3.5/6, 58%) vs 2516-rated opposition   +0.7 
    ISR-ch, 1992  not rated on January 1992 list   2559   +2 (6.5/11, 59%)   +1 (3.5/6, 58%) vs 2538-rated opposition   N/A 
    Rishon Le Ziyyon, 1992  not rated on January 1992 list   2429   -1 (6/13, 46%)   -3 (4/11, 36%) vs 2488-rated opposition   N/A 
    Kfar Sava, 1993  2481 (#707 on January 1993 list)   -   +2 (2.5/3, 83%)   no games vs rated opposition   N/A 
    Rishon Le Ziyyon, 1993  2481 (#707 on January 1993 list)   2443   -4 (4.5/13, 35%)   -3 (4/11, 36%) vs 2504-rated opposition   -1.2 
    Tel Aviv, 1993  2481 (#707 on January 1993 list)   [2440]   +1 (6/11, 55%)   = (2/4, 50%) vs 2434-rated opposition   -0.2 
    ISR-ch Jerusalem, 1996  not rated on October 1996 list   [2463]   -3 (3/9, 33%)   = (2/4, 50%) vs 2465-rated opposition   N/A 
    ISR-chT Israel, 1997  not rated on January 1997 list   [2532]   +1 (1/1, 100%)   +1 (1/1, 100%) vs 2517-rated opposition   N/A 
    ISR-chT Israel, 1999  not rated on January 1999 list   [2519]   = (2.5/5, 50%)   -1 (0.5/2, 25%) vs 2634-rated opposition   N/A 
    ISR-chT Ramat Aviv, 2000  not rated on January 2000 list   [2375]   -2 (1.5/5, 30%)   -2 (0.5/3, 17%) vs 2468-rated opposition   N/A 
    ISR-chT Israel, 2003  not rated on January 2003 list   [2461]   -1 (0/1, 0%)   -1 (0/1, 0%) vs 2574-rated opposition   N/A 
    ISR-ch Ramat Aviv, 2004  not rated on September 2004 list   [2322]   -3 (3/9, 33%)   -2 (0/2, 0%) vs 2410-rated opposition   N/A