| Compare by Age | Compare 1908-1946 | Compare 1947-1972 | Compare 1973-2007 | Individual Players |
| Morphy | Steinitz | Lasker | Capablanca | Alekhine | Euwe | Botvinnik | Smyslov |
| Tal | Petrosian | Spassky | Fischer | Karpov | Kasparov | Kramnik | Anand |
|   | 1 Yr Periods | 3 Yr Periods | 5 Yr Periods | 10 Yr Periods | Return to TrueChess home | Return to Compare Champions home |
| DRAWN GAMES ARE EXCLUDED FROM "BLUNDERS" AND "AVG ERROR" DATA COLUMNS |
| YEAR | AGE | MOVES ANALYZED | WHITE PTS PERCENT | BLACK PTS PERCENT | TOTAL PTS PERCENT | BLUNDERS per 1000 MOVES | AVG ERROR per WHITE MOVE | AVG ERROR per BLACK MOVE | AVG ERROR per MOVE | COMPLEXITY – ALL GAMES | COMPLEXITY – WINNING GAMES |
| 1941 | 20 | 1578 | 58.62 | 51.85 | 55.36 | 18.55 | 9.54 | 9.08 | 9.35 | 18.64 | 27.08 |
| 1942 | 21 | 1874 | 66.67 | 66.67 | 66.67 | 8.44 | 9.28 | 9.41 | 9.33 | 21.18 | 26.82 |
| 1943 | 22 | 1726 | 68.33 | 59.68 | 63.93 | 7.71 | 9.41 | 10.03 | 9.66 | 20.96 | 28.32 |
| 1944 | 23 | 1580 | 67.86 | 70.69 | 69.30 | 5.40 | 10.33 | 9.78 | 10.06 | 21.23 | 25.79 |
| 1945 | 24 | 1694 | 74.19 | 55.88 | 64.62 | 6.05 | 10.36 | 9.90 | 10.14 | 19.88 | 26.78 |
| 1946 | 25 | 2613 | 70.00 | 62.75 | 66.34 | 6.19 | 9.33 | 9.69 | 9.51 | 20.05 | 25.93 |
| 1947 | 26 | 3696 | 72.54 | 59.03 | 65.73 | 7.27 | 8.59 | 9.89 | 9.19 | 19.31 | 25.66 |
| 1948 | 27 | 3387 | 67.69 | 59.52 | 63.67 | 5.99 | 8.27 | 9.79 | 8.94 | 18.19 | 23.55 |
| 1949 | 28 | 3000 | 69.83 | 60.91 | 65.49 | 7.60 | 9.40 | 9.73 | 9.55 | 17.36 | 22.01 |
| 1950 | 29 | 2779 | 74.07 | 55.88 | 65.24 | 8.28 | 9.22 | 10.63 | 9.84 | 18.23 | 23.01 |
| 1951 | 30 | 3163 | 79.69 | 58.49 | 70.09 | 6.90 | 9.09 | 11.16 | 9.94 | 18.84 | 23.74 |
| 1952 | 31 | 3496 | 80.28 | 52.50 | 67.56 | 7.64 | 8.68 | 10.73 | 9.44 | 18.99 | 25.33 |
| 1953 | 32 | 3208 | 76.81 | 57.63 | 67.97 | 7.93 | 9.14 | 9.45 | 9.26 | 18.20 | 25.31 |
| 1954 | 33 | 3589 | 71.33 | 56.76 | 64.09 | 7.91 | 8.50 | 8.83 | 8.64 | 17.63 | 24.85 |
| 1955 | 34 | 3542 | 70.40 | 60.81 | 65.67 | 6.01 | 8.33 | 9.41 | 8.74 | 17.77 | 24.42 |
| 1956 | 35 | 3810 | 71.52 | 61.54 | 66.56 | 4.66 | 8.26 | 9.65 | 8.76 | 17.13 | 22.41 |
| 1957 | 36 | 3175 | 72.39 | 60.00 | 66.29 | 5.08 | 8.87 | 10.05 | 9.26 | 17.17 | 24.28 |
| 1958 | 37 | 2880 | 70.18 | 54.17 | 61.97 | 4.52 | 9.43 | 10.26 | 9.78 | 15.34 | 21.88 |
| 1959 | 38 | 3000 | 62.93 | 53.39 | 58.12 | 7.47 | 9.89 | 10.47 | 10.20 | 16.27 | 23.19 |
| 1960 | 39 | 3536 | 65.91 | 59.42 | 62.59 | 8.61 | 9.50 | 9.47 | 9.49 | 16.24 | 20.53 |
| 1961 | 40 | 4407 | 66.46 | 62.07 | 64.20 | 8.52 | 8.89 | 9.11 | 9.00 | 18.40 | 22.75 |
| 1962 | 41 | 4184 | 70.73 | 63.37 | 66.96 | 6.31 | 8.59 | 8.95 | 8.75 | 18.64 | 24.05 |
| 1963 | 42 | 3972 | 71.61 | 64.46 | 67.99 | 4.79 | 8.48 | 10.02 | 9.23 | 20.10 | 27.34 |
| 1964 | 43 | 3785 | 74.68 | 69.48 | 72.12 | 2.73 | 8.02 | 9.80 | 8.86 | 19.39 | 26.41 |
| 1965 | 44 | 3717 | 78.67 | 70.42 | 74.66 | 2.88 | 8.33 | 9.36 | 8.79 | 18.69 | 24.63 |
| 1966 | 45 | 4202 | 76.71 | 64.38 | 70.83 | 2.31 | 8.05 | 9.04 | 8.48 | 17.05 | 22.63 |
| 1967 | 46 | 4366 | 74.49 | 63.22 | 69.19 | 3.00 | 8.72 | 9.34 | 8.99 | 16.91 | 22.48 |
| 1968 | 47 | 4535 | 73.74 | 65.26 | 69.59 | 3.52 | 8.65 | 9.60 | 9.10 | 19.36 | 25.05 |
| 1969 | 48 | 4216 | 72.78 | 66.48 | 69.61 | 3.94 | 8.97 | 9.20 | 9.07 | 20.07 | 25.54 |
| 1970 | 49 | 4200 | 72.16 | 61.83 | 66.85 | 3.07 | 9.11 | 8.84 | 8.99 | 19.51 | 28.08 |
| 1971 | 50 | 4093 | 68.09 | 57.98 | 63.03 | 1.71 | 9.49 | 8.35 | 9.05 | 16.97 | 28.29 |
| 1972 | 51 | 4513 | 69.80 | 55.09 | 62.20 | 3.26 | 9.11 | 8.91 | 9.03 | 16.29 | 26.81 |
| 1973 | 52 | 4021 | 68.18 | 54.95 | 61.45 | 4.50 | 8.25 | 9.31 | 8.67 | 16.06 | 24.83 |
| 1974 | 53 | 3919 | 71.08 | 54.07 | 62.43 | 4.40 | 8.21 | 10.62 | 9.22 | 17.53 | 24.79 |
| 1975 | 54 | 3098 | 65.44 | 60.94 | 63.26 | 4.01 | 8.60 | 10.72 | 9.54 | 18.45 | 26.76 |
| 1976 | 55 | 3100 | 65.07 | 58.78 | 61.91 | 2.56 | 9.08 | 9.60 | 9.35 | 17.43 | 25.38 |
| 1977 | 56 | 3079 | 58.70 | 54.86 | 56.74 | 5.01 | 9.04 | 9.09 | 9.06 | 15.91 | 25.21 |
| 1978 | 57 | 3258 | 61.81 | 52.03 | 56.85 | 3.63 | 9.29 | 8.45 | 8.84 | 14.63 | 20.72 |
| 1979 | 58 | 2772 | 59.32 | 50.00 | 54.62 | 3.71 | 9.79 | 10.56 | 10.18 | 14.63 | 22.03 |
| 1980 | 59 | 2354 | 68.87 | 56.60 | 62.74 | 2.64 | 10.62 | 8.80 | 9.81 | 15.46 | 21.93 |
| 1981 | 60 | 2303 | 66.36 | 54.55 | 60.46 | 3.82 | 9.98 | 9.17 | 9.65 | 16.03 | 24.25 |
| 1982 | 61 | 2056 | 70.83 | 57.00 | 63.78 | 4.29 | 9.39 | 7.63 | 8.65 | 17.04 | 24.10 |
| 1983 | 62 | 2157 | 64.13 | 50.00 | 56.99 | 3.63 | 7.72 | 8.97 | 8.30 | 14.98 | 24.69 |
| 1984 | 63 | 2335 | 59.00 | 46.00 | 52.50 | 8.65 | 8.44 | 9.88 | 9.20 | 15.11 | 25.53 |
| 1985 | 64 | 2694 | 54.17 | 46.55 | 50.42 | 10.68 | 8.44 | 9.82 | 9.12 | 14.48 | 25.42 |
| 1986 | 65 | 2865 | 54.29 | 47.10 | 50.72 | 13.40 | 7.78 | 10.07 | 9.00 | 13.80 | 21.36 |
| 1987 | 66 | 2488 | 55.09 | 48.31 | 51.70 | 10.65 | 7.83 | 9.45 | 8.67 | 14.79 | 19.10 |
| 1988 | 67 | 2608 | 60.32 | 45.76 | 53.28 | 8.14 | 8.69 | 9.41 | 9.00 | 15.63 | 18.92 |
| 1989 | 68 | 2952 | 62.69 | 45.83 | 54.72 | 4.48 | 8.63 | 10.02 | 9.16 | 16.17 | 19.11 |
| 1990 | 69 | 3322 | 63.75 | 47.18 | 55.96 | 5.04 | 9.04 | 10.41 | 9.58 | 16.13 | 22.48 |
| 1991 | 70 | 2910 | 67.14 | 48.46 | 58.15 | 5.45 | 9.10 | 9.78 | 9.37 | 16.53 | 25.22 |