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Sorted by Blunders per 1000 Moves

1 YEAR 2 YEAR 3 YEAR 5 YEAR 10 YEAR 15 YEAR
PLAYER 2-YEAR PERIOD ENDING AGE NUMBER OF MOVES ANALYZED DECISIVE GAMES (MINIMUM = 20) PERCENT OF POINTS SCORED BLUNDERS PER 1000 MOVES PERCENT BETTER THAN NORMAL SCORE PER MOVE
ANAND 2007 37 1615 34 61.49 0.00 23.35
BOTVINNIK 1931 19 679 27 81.82 0.00 11.65
BOTVINNIK 1932 20 564 23 83.93 0.00 17.78
BOTVINNIK 1939 27 913 26 70.83 0.00 2.97
BOTVINNIK 1969 57 735 20 65.22 0.00 1.38
FISCHER 1969 26 524 20 87.04 0.00 37.27
SPASSKY 1981 44 1251 32 60.64 0.00 17.42
SMYSLOV 1979 58 1219 35 57.24 1.33 -9.57
KASPAROV 2001 38 1708 34 66.48 1.42 20.02
KASPAROV 1984 21 1461 31 58.43 1.49 -3.28
SMYSLOV 1976 55 1367 33 59.69 1.62 19.60
KASPAROV 2002 39 1200 28 72.22 1.68 11.36
ALEKHINE 1934 41 1660 53 75.00 1.85 -7.80
KRAMNIK 2000 25 1553 24 59.71 1.90 27.43
KASPAROV 1999 36 949 24 70.37 1.92 18.89
FISCHER 1970 27 1542 51 80.41 1.94 20.16
SMYSLOV 1970 49 2039 48 63.18 2.04 12.21
PETROSIAN 1973 44 1734 47 65.85 2.09 16.66
SMYSLOV 1971 50 1990 47 62.77 2.15 9.27
KARPOV 1984 33 1745 40 63.12 2.28 10.75
KASPAROV 1998 35 887 23 67.00 2.36 6.81
SPASSKY 1982 45 1602 42 59.09 2.47 -8.03
KASPAROV 2000 37 1580 37 68.24 2.50 19.97
SMYSLOV 1975 54 1255 41 64.88 2.54 -0.08
CAPABLANCA 1935 46 626 22 66.22 2.55 -18.64
FISCHER 1971 28 1992 68 81.92 2.79 24.68
KRAMNIK 1999 24 1649 34 58.18 2.93 17.48
ALEKHINE 1931 38 1193 48 83.82 3.20 11.50
SMYSLOV 1964 43 1896 60 74.27 3.28 9.52
CAPABLANCA 1915 26 793 29 82.05 3.34 13.95
SMYSLOV 1966 45 1847 57 69.16 3.35 8.72
ALEKHINE 1933 40 1637 61 81.55 3.42 -1.98
CAPABLANCA 1930 41 1262 47 78.08 3.51 13.76
EUWE 1939 38 1518 45 66.88 3.52 11.03
BOTVINNIK 1964 52 1049 27 64.71 3.53 8.58
SMYSLOV 1967 46 2284 67 67.25 3.55 4.22
CAPABLANCA 1916 27 669 25 87.10 3.58 26.11
SMYSLOV 1965 44 1982 65 74.52 3.72 11.94
KARPOV 1983 32 1931 49 65.09 3.75 7.08
LASKER 1909 40 1026 38 72.92 3.81 -0.65
ANAND 2006 36 1750 37 60.33 3.81 16.92
SMYSLOV 1957 36 1394 35 64.02 3.85 0.10
CAPABLANCA 1929 40 1628 56 76.04 3.91 13.73
SMYSLOV 1974 53 1652 52 63.40 3.91 -0.18
LASKER 1910 41 1140 37 73.59 3.92 10.55
KRAMNIK 2007 32 1244 25 63.57 3.93 21.76
KARPOV 1974 23 2537 56 68.32 4.05 10.94
SMYSLOV 1982 61 985 23 58.09 4.09 18.92
KARPOV 1990 39 1937 44 62.04 4.10 17.40
KARPOV 1978 27 2090 56 68.18 4.11 6.02
LASKER 1900 31 888 34 84.09 4.13 3.92
SMYSLOV 1980 59 968 37 62.88 4.17 -10.30
FISCHER 1967 24 1654 61 77.44 4.20 15.43
KRAMNIK 1996 21 2158 59 63.36 4.31 17.36
BOTVINNIK 1957 45 854 24 60.00 4.37 12.95
ALEKHINE 1930 37 1170 46 81.03 4.41 8.92
KARPOV 1991 40 2447 52 58.53 4.45 10.02
KARPOV 1987 36 2487 50 59.85 4.50 0.53
SMYSLOV 1963 42 1518 44 71.05 4.53 9.05
SPASSKY 1963 26 1438 46 71.35 4.57 10.28
ALEKHINE 1945 52 550 22 83.33 4.59 -17.27
KARPOV 1977 26 2202 68 74.79 4.61 11.03
PETROSIAN 1972 43 1658 43 61.25 4.62 9.22
KARPOV 1982 31 2009 50 65.04 4.63 9.41
FISCHER 1968 25 1216 47 83.07 4.64 21.21
KARPOV 1979 28 1614 38 62.36 4.73 8.23
BOTVINNIK 1945 33 781 29 84.72 4.73 7.06
KASPAROV 1983 20 1252 42 73.68 4.75 5.36
SPASSKY 1962 25 1833 62 71.70 4.79 10.52
PETROSIAN 1962 33 1932 60 70.80 4.85 12.00
KARPOV 1975 24 1955 40 64.55 4.85 15.31
FISCHER 1972 29 922 27 75.61 4.90 27.87
KARPOV 1993 42 3008 84 66.88 4.91 0.08
KARPOV 1970 19 1674 52 67.90 4.94 9.05
SPASSKY 1987 50 1362 29 59.92 5.06 18.61
ALEKHINE 1932 39 1637 61 80.56 5.07 -0.69
MORPHY 1859 22 711 35 75.61 5.09 -2.98
SMYSLOV 1989 68 1583 38 56.19 5.10 4.07
PETROSIAN 1959 30 1868 45 64.87 5.14 6.76
ALEKHINE 1924 31 968 30 68.00 5.19 10.41
SMYSLOV 1988 67 1191 27 53.29 5.21 9.45
PETROSIAN 1953 24 1246 36 61.63 5.24 -4.01
KARPOV 1971 20 2172 63 67.80 5.25 1.83
FISCHER 1966 23 1583 58 75.64 5.26 24.42
SPASSKY 1958 21 1389 38 64.82 5.35 10.89
KARPOV 1988 37 3152 72 65.85 5.38 8.15
KARPOV 1992 41 2848 75 61.99 5.40 5.37
PETROSIAN 1979 50 1603 42 63.39 5.41 12.61
SMYSLOV 1969 48 1741 53 69.90 5.51 19.89
KRAMNIK 1993 18 2850 87 68.47 5.51 15.42
SPASSKY 1970 33 1585 40 65.00 5.56 9.36
BOTVINNIK 1946 34 918 35 81.40 5.57 3.28
SPASSKY 1967 30 2188 54 61.18 5.60 14.98
BOTVINNIK 1938 26 812 28 63.64 5.62 -11.66
LASKER 1893 24 638 24 84.48 5.62 2.91
KRAMNIK 2004 29 1393 25 54.89 5.64 -1.30
KARPOV 1989 38 3000 76 67.28 5.67 17.91
PETROSIAN 1955 26 1979 49 67.37 5.67 3.32
KRAMNIK 1992 17 2736 93 73.33 5.69 20.38
ALEKHINE 1922 29 1505 59 75.28 5.75 10.00
SPASSKY 1986 49 1904 51 60.61 5.80 22.07
SMYSLOV 1968 47 2155 73 71.92 5.88 10.32
PETROSIAN 1963 34 1671 40 64.56 5.90 8.79
SPASSKY 1985 48 1438 43 60.50 5.95 15.38
SMYSLOV 1991 70 1126 33 58.93 6.00 13.95
SMYSLOV 1958 37 1171 31 57.14 6.07 -15.16
SPASSKY 1991 54 1138 30 61.11 6.07 10.86
PETROSIAN 1974 45 1586 48 65.18 6.08 11.00
SPASSKY 1990 53 1366 34 52.97 6.11 -17.77
BOTVINNIK 1956 44 870 26 65.69 6.12 10.54
SMYSLOV 1972 51 1880 51 61.83 6.19 7.22
BOTVINNIK 1944 32 651 20 76.67 6.24 1.04
KARPOV 1986 35 2217 45 56.05 6.25 3.89
ALEKHINE 1929 36 712 24 70.59 6.26 5.42
BOTVINNIK 1953 41 836 22 66.67 6.28 -1.53
KRAMNIK 1998 23 1926 48 61.21 6.29 22.11
TAL 1965 28 1828 59 72.40 6.32 -0.16
SMYSLOV 1955 34 1817 53 66.02 6.34 16.16
ALEKHINE 1923 30 1540 59 73.84 6.38 6.86
CAPABLANCA 1936 47 1278 40 70.27 6.39 -7.85
SPASSKY 1966 29 2391 54 61.27 6.40 10.41
ALEKHINE 1928 35 1286 24 60.00 6.49 9.35
SMYSLOV 1956 35 1771 49 68.75 6.51 11.84
SMYSLOV 1977 56 1579 32 54.72 6.52 7.37
PETROSIAN 1965 36 1453 42 68.48 6.56 9.44
CAPABLANCA 1927 38 1124 21 57.26 6.57 16.94
ALEKHINE 1936 43 2293 69 67.62 6.67 3.82
KARPOV 1976 25 1839 47 68.47 6.69 19.95
KASPAROV 1997 34 1278 38 70.29 6.70 6.97
KARPOV 1994 43 3065 81 69.16 6.76 8.76
PETROSIAN 1981 52 1494 33 60.61 6.76 -4.61
KRAMNIK 1997 22 2259 57 61.48 6.79 15.99
ANAND 2005 35 1770 41 63.24 6.80 11.44
KARPOV 1985 34 1740 34 56.96 6.83 5.14
TAL 1987 50 953 31 63.22 6.94 25.08
SMYSLOV 1973 52 2031 58 60.83 6.95 6.63
EUWE 1942 41 601 24 75.71 6.98 28.53
ALEKHINE 1921 28 657 25 76.25 6.99 24.39
TAL 1977 40 2352 68 61.84 6.99 14.51
PETROSIAN 1978 49 1427 33 61.28 7.03 9.58
ANAND 1998 28 2197 55 63.89 7.06 14.34
ALEKHINE 1935 42 1905 58 66.16 7.09 -13.37
KARPOV 1981 30 2175 59 65.65 7.11 9.25
TAL 1982 45 2008 66 68.24 7.12 9.18
KASPAROV 1990 27 1903 49 69.70 7.14 13.92
PETROSIAN 1954 25 1879 51 65.49 7.14 -0.36
PETROSIAN 1960 31 2095 69 72.18 7.15 13.62
SMYSLOV 1990 69 1607 41 56.19 7.26 1.28
KARPOV 1995 44 2453 61 69.75 7.26 18.16
EUWE 1940 39 1303 46 68.92 7.29 2.05
SMYSLOV 1951 30 1658 51 68.90 7.31 0.55
LASKER 1894 25 510 20 70.83 7.32 -12.48
CAPABLANCA 1914 25 706 27 80.00 7.38 15.09
SMYSLOV 1978 57 1422 30 56.02 7.39 -5.37
CAPABLANCA 1928 39 1529 32 60.47 7.40 19.90
SPASSKY 1965 28 2758 74 68.24 7.40 15.07
SMYSLOV 1962 41 2116 54 65.57 7.42 15.59
KARPOV 1980 29 1886 55 66.81 7.46 3.46
SPASSKY 1964 27 2074 55 67.98 7.47 20.50
SMYSLOV 1954 33 1633 45 63.50 7.49 15.44
FISCHER 1963 20 1628 56 68.39 7.49 9.84
PETROSIAN 1961 32 2089 79 76.80 7.51 14.68
SPASSKY 1968 31 1923 58 68.25 7.52 6.03
ANAND 1997 27 2061 57 64.22 7.58 3.04
BOTVINNIK 1935 23 734 22 65.39 7.60 -16.82
FISCHER 1962 19 2060 59 63.43 7.65 12.28
PETROSIAN 1969 40 1750 49 64.47 7.66 3.77
TAL 1957 20 1424 43 68.59 7.76 17.87
CAPABLANCA 1937 48 978 24 68.18 7.78 -0.73
BOTVINNIK 1937 25 903 24 63.64 7.84 4.93
BOTVINNIK 1936 24 1056 27 69.09 7.86 1.08
KASPAROV 1989 26 2362 68 73.85 7.90 23.69
KRAMNIK 1995 20 2186 63 63.89 7.91 14.79
KRAMNIK 2001 26 1361 24 60.84 8.02 26.23
CAPABLANCA 1939 50 815 21 64.13 8.02 -6.91
SMYSLOV 1981 60 1039 32 64.87 8.04 7.64
PETROSIAN 1970 41 1988 48 58.46 8.06 4.63
SMYSLOV 1948 27 1525 37 62.18 8.09 5.90
EUWE 1934 33 710 26 75.00 8.10 20.87
SPASSKY 1980 43 1432 39 57.59 8.24 2.42
EUWE 1926 25 1202 49 77.21 8.29 6.52
SPASSKY 1969 32 2025 51 66.23 8.33 0.67
KARPOV 1972 21 2053 69 70.90 8.42 -1.40
PETROSIAN 1980 51 1800 43 62.60 8.42 10.42
BOTVINNIK 1933 21 506 21 73.44 8.43 20.71
LASKER 1897 28 728 28 72.22 8.43 -1.16
BOTVINNIK 1934 22 588 21 62.50 8.45 8.00
TAL 1974 37 2924 98 68.48 8.50 18.60
BOTVINNIK 1968 56 746 23 71.59 8.51 25.26
SPASSKY 1983 46 1960 47 56.74 8.53 -11.99
EUWE 1925 24 1258 57 76.35 8.55 3.23
SMYSLOV 1947 26 2081 59 65.28 8.60 16.21
SMYSLOV 1945 24 942 35 66.67 8.62 -2.63
KASPAROV 1993 30 1450 41 72.73 8.73 22.13
KARPOV 1996 45 2393 51 61.69 8.92 4.57
KASPAROV 1994 31 1693 45 68.33 8.97 11.69
SPASSKY 1975 38 1319 39 62.50 8.97 16.49
FISCHER 1958 15 1982 68 72.86 8.99 13.45
KARPOV 1973 22 2139 61 71.49 9.00 6.24
PETROSIAN 1982 53 1364 33 57.07 9.02 -8.95
ANAND 1991 21 2662 90 61.72 9.04 3.80
PETROSIAN 1964 35 1622 41 66.48 9.08 13.27
TAL 1988 51 1392 43 57.72 9.12 22.96
EUWE 1928 27 1634 55 69.89 9.15 7.18
EUWE 1941 40 991 42 68.97 9.22 8.17
PETROSIAN 1958 29 1608 46 65.53 9.26 -5.53
TAL 1978 41 1776 56 64.78 9.29 17.84
PETROSIAN 1950 21 1346 42 55.41 9.34 -17.52
KARPOV 1969 18 1380 53 77.92 9.34 0.76
KASPAROV 1982 19 1707 60 71.91 9.35 12.42
TAL 1984 47 1711 39 56.05 9.37 7.92
TAL 1961 24 2230 73 64.68 9.39 7.61
PETROSIAN 1975 46 1769 52 62.90 9.39 3.13
TAL 1964 27 2650 93 76.07 9.43 9.24
MORPHY 1858 21 908 43 76.47 9.45 4.00
ALEKHINE 1939 46 1419 49 78.47 9.47 7.08
SPASSKY 1957 20 1837 48 61.71 9.50 13.47
EUWE 1950 49 1644 48 67.35 9.52 19.26
TAL 1975 38 2108 72 67.78 9.54 16.39
BOTVINNIK 1948 36 649 21 71.43 9.55 5.42
LASKER 1896 27 1407 54 70.83 9.55 4.21
PETROSIAN 1971 42 1740 40 56.56 9.63 11.43
FISCHER 1961 18 1797 57 67.86 9.65 17.66
TAL 1972 35 2126 74 71.05 9.69 8.40
LASKER 1895 26 1149 43 68.42 9.71 4.92
TAL 1976 39 2040 49 57.96 9.71 -0.49
TAL 1971 34 1746 62 68.27 9.77 2.73
SMYSLOV 1961 40 2211 54 66.52 9.80 13.85
ANAND 1994 24 2003 55 63.48 9.80 14.42
TAL 1992 55 737 23 55.56 9.83 -13.27
SMYSLOV 1952 31 1635 54 69.75 9.85 0.51
FISCHER 1965 22 666 26 77.27 9.86 28.93
ALEKHINE 1912 19 994 43 62.50 9.89 -4.23
PETROSIAN 1966 37 1790 42 60.71 9.90 9.05
TAL 1960 23 2318 82 68.32 9.98 5.32
TAL 1981 44 1748 44 60.08 10.02 -1.83
ANAND 2004 34 1425 40 65.39 10.08 11.38
EUWE 1953 52 959 32 55.36 10.08 4.88
LASKER 1924 55 655 22 80.30 10.10 4.78
SMYSLOV 1943 22 861 29 70.73 10.12 -7.02
KASPAROV 1985 22 1790 30 55.61 10.15 11.89
PETROSIAN 1983 54 1414 32 54.90 10.15 -1.91
LASKER 1925 56 817 26 75.00 10.20 10.99
ANAND 1992 22 2567 70 59.02 10.22 3.96
EUWE 1927 26 1272 50 75.35 10.25 5.94
SMYSLOV 1946 25 1591 56 66.47 10.27 4.44
KRAMNIK 1994 19 2866 83 62.95 10.30 5.63
ALEKHINE 1927 34 2283 59 66.53 10.33 8.93
TAL 1983 46 1947 57 62.41 10.38 17.60
BOTVINNIK 1958 46 1185 32 56.45 10.40 0.39
PETROSIAN 1952 23 1448 49 65.88 10.42 2.06
SPASSKY 1961 24 1602 58 69.57 10.47 5.85
FISCHER 1959 16 2251 74 62.82 10.48 -6.88
TAL 1973 36 2793 92 68.29 10.48 13.29
PETROSIAN 1968 39 1427 44 68.89 10.49 2.42
KASPAROV 1981 18 1954 68 73.42 10.57 12.54
ANAND 1995 25 1499 41 57.74 10.59 11.92
BOTVINNIK 1947 35 762 28 73.68 10.62 0.72
ALEKHINE 1937 44 2562 77 67.44 10.65 7.25
SPASSKY 1988 51 1162 29 58.17 10.66 5.77
ALEKHINE 1925 32 1013 33 72.88 10.68 -2.81
ANAND 2001 31 1466 36 60.75 10.71 9.38
ALEKHINE 1944 51 755 29 84.62 10.75 16.05
KASPAROV 1986 23 1969 48 63.46 10.77 21.39
SPASSKY 1989 52 1570 41 54.04 10.80 -8.95
SPASSKY 1984 47 1491 37 57.66 10.84 -1.61
PETROSIAN 1951 22 1613 53 63.37 10.94 -9.17
BOTVINNIK 1961 49 1464 44 62.00 10.94 -2.14
FISCHER 1960 17 2720 100 65.86 11.01 0.59
SPASSKY 1978 41 1854 51 57.52 11.01 1.77
TAL 1985 48 1766 46 58.51 11.06 8.16
SPASSKY 1976 39 877 26