| 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 |
| 1939 | 18 | 452 | 50.00 | 43.75 | 47.06 | 42.06 | 13.93 | 10.14 | 11.88 | 17.14 | 28.46 |
| 1940 | 19 | 548 | 70.00 | 66.67 | 68.42 | 8.16 | 9.17 | 8.79 | 8.97 | 21.11 | 24.84 |
| 1941 | 20 | 578 | 55.00 | 45.00 | 50.00 | 8.26 | 7.78 | 6.75 | 7.64 | 17.48 | 30.11 |
| 1942 | 21 | 748 | 73.08 | 82.14 | 77.78 | 8.64 | 10.47 | 10.03 | 10.25 | 24.25 | 26.97 |
| 1943 | 22 | 400 | 78.57 | 35.71 | 57.14 | 4.61 | 9.93 | 11.09 | 10.51 | 20.17 | 31.42 |
| 1944 | 23 | 432 | 50.00 | 81.25 | 65.63 | 0.00 | 10.34 | 8.13 | 9.41 | 16.96 | 19.75 |
| 1945 | 24 | 862 | 84.38 | 52.63 | 67.14 | 9.59 | 10.52 | 10.25 | 10.39 | 21.21 | 28.85 |
| 1946 | 25 | 1319 | 67.31 | 64.58 | 66.00 | 5.97 | 7.97 | 9.79 | 8.89 | 20.31 | 26.07 |
| 1947 | 26 | 1515 | 70.69 | 58.62 | 64.66 | 6.77 | 7.84 | 9.67 | 8.55 | 17.44 | 22.88 |
| 1948 | 27 | 553 | 60.00 | 50.00 | 55.00 | 3.82 | 10.10 | 10.19 | 10.13 | 15.36 | 16.92 |
| 1949 | 28 | 932 | 73.68 | 71.88 | 72.86 | 10.38 | 11.75 | 9.64 | 10.55 | 18.45 | 22.69 |
| 1950 | 29 | 1294 | 80.00 | 48.00 | 64.00 | 8.21 | 7.57 | 11.84 | 9.22 | 19.28 | 24.93 |
| 1951 | 30 | 937 | 85.00 | 62.50 | 76.56 | 2.77 | 9.21 | 12.36 | 10.23 | 18.60 | 23.41 |
| 1952 | 31 | 1265 | 76.92 | 52.17 | 65.31 | 11.63 | 9.22 | 8.42 | 8.91 | 18.98 | 27.74 |
| 1953 | 32 | 1006 | 69.57 | 60.42 | 64.89 | 9.58 | 8.87 | 7.92 | 8.44 | 16.88 | 24.76 |
| 1954 | 33 | 1318 | 67.31 | 57.41 | 62.26 | 2.75 | 7.38 | 9.85 | 8.50 | 16.90 | 21.95 |
| 1955 | 34 | 1218 | 74.07 | 65.22 | 70.00 | 6.69 | 8.73 | 10.49 | 9.20 | 19.48 | 26.27 |
| 1956 | 35 | 1274 | 73.08 | 62.50 | 67.59 | 4.46 | 8.48 | 8.69 | 8.55 | 15.18 | 18.70 |
| 1957 | 36 | 683 | 67.86 | 46.43 | 57.14 | 2.84 | 10.04 | 11.60 | 10.71 | 16.86 | 32.93 |
| 1958 | 37 | 923 | 67.65 | 47.22 | 57.14 | 5.73 | 10.57 | 10.90 | 10.74 | 14.43 | 19.41 |
| 1959 | 38 | 1394 | 57.41 | 61.11 | 59.26 | 10.96 | 9.20 | 9.81 | 9.56 | 17.19 | 20.89 |
| 1960 | 39 | 1219 | 75.00 | 66.67 | 70.65 | 8.26 | 8.99 | 7.25 | 8.32 | 16.50 | 20.78 |
| 1961 | 40 | 1794 | 68.18 | 59.72 | 63.77 | 6.70 | 8.61 | 9.42 | 8.99 | 20.61 | 25.59 |
| 1962 | 41 | 1171 | 70.37 | 65.39 | 67.93 | 3.57 | 8.02 | 9.64 | 8.82 | 17.83 | 25.33 |
| 1963 | 42 | 1007 | 78.57 | 71.43 | 75.00 | 3.17 | 8.72 | 11.18 | 9.96 | 21.87 | 31.36 |
| 1964 | 43 | 1607 | 75.81 | 71.67 | 73.77 | 1.98 | 7.63 | 8.95 | 8.23 | 19.00 | 23.78 |
| 1965 | 44 | 1103 | 82.61 | 67.50 | 75.58 | 3.79 | 8.89 | 8.16 | 8.61 | 15.38 | 20.04 |
| 1966 | 45 | 1492 | 73.53 | 55.00 | 64.84 | 1.25 | 7.61 | 9.87 | 8.68 | 16.20 | 23.84 |
| 1967 | 46 | 1771 | 70.73 | 67.57 | 69.23 | 3.71 | 9.35 | 9.68 | 9.50 | 18.44 | 23.31 |
| 1968 | 47 | 1272 | 79.17 | 73.21 | 75.96 | 5.19 | 8.68 | 9.28 | 8.97 | 24.50 | 28.04 |
| 1969 | 48 | 1173 | 70.00 | 57.69 | 63.73 | 2.01 | 8.59 | 8.04 | 8.33 | 17.93 | 25.83 |
| 1970 | 49 | 1755 | 69.23 | 56.41 | 62.82 | 1.22 | 9.77 | 8.82 | 9.43 | 17.06 | 29.64 |
| 1971 | 50 | 1165 | 65.00 | 60.35 | 62.71 | 2.26 | 9.82 | 7.94 | 9.18 | 15.86 | 28.77 |
| 1972 | 51 | 1593 | 75.00 | 50.00 | 61.11 | 5.65 | 8.03 | 9.35 | 8.60 | 15.77 | 22.79 |
| 1973 | 52 | 1263 | 63.46 | 56.82 | 60.42 | 4.46 | 7.40 | 10.03 | 8.42 | 16.62 | 24.26 |
| 1974 | 53 | 1063 | 74.00 | 58.33 | 66.33 | 2.80 | 9.28 | 12.75 | 10.79 | 21.37 | 27.60 |
| 1975 | 54 | 772 | 55.88 | 69.44 | 62.86 | 5.56 | 10.13 | 8.49 | 9.21 | 17.50 | 29.05 |
| 1976 | 55 | 1265 | 62.90 | 53.13 | 57.94 | 0.00 | 7.96 | 7.08 | 7.45 | 14.24 | 19.20 |
| 1977 | 56 | 1042 | 54.76 | 45.46 | 50.00 | 11.46 | 9.39 | 13.16 | 11.30 | 16.81 | 31.67 |
| 1978 | 57 | 951 | 67.50 | 57.50 | 62.50 | 1.86 | 10.24 | 7.03 | 8.59 | 12.80 | 17.60 |
| 1979 | 58 | 779 | 55.56 | 47.22 | 51.39 | 0.00 | 9.53 | 12.97 | 11.29 | 13.97 | 22.81 |
| 1980 | 59 | 624 | 86.67 | 66.67 | 76.67 | 5.81 | 11.61 | 5.79 | 9.81 | 21.56 | 25.37 |
| 1981 | 60 | 900 | 61.36 | 52.27 | 56.82 | 6.06 | 7.68 | 6.54 | 7.22 | 14.10 | 23.71 |
| 1982 | 61 | 532 | 68.18 | 53.85 | 60.42 | 0.00 | 6.03 | 9.81 | 8.33 | 16.95 | 22.09 |
| 1983 | 62 | 725 | 65.39 | 41.67 | 54.00 | 5.65 | 9.68 | 12.19 | 10.45 | 14.62 | 32.48 |
| 1984 | 63 | 1078 | 51.92 | 44.00 | 48.04 | 14.73 | 9.11 | 9.55 | 9.35 | 14.53 | 25.62 |
| 1985 | 64 | 891 | 50.00 | 52.38 | 51.19 | 6.45 | 6.49 | 9.58 | 8.03 | 14.31 | 20.94 |
| 1986 | 65 | 896 | 60.87 | 45.65 | 53.26 | 17.60 | 6.95 | 11.39 | 9.35 | 12.40 | 17.10 |
| 1987 | 66 | 701 | 53.33 | 46.67 | 50.00 | 6.94 | 10.20 | 6.97 | 8.57 | 18.40 | 19.75 |
| 1988 | 67 | 1011 | 64.00 | 45.24 | 55.44 | 2.10 | 8.82 | 9.45 | 9.02 | 16.54 | 19.79 |
| 1989 | 68 | 1240 | 66.67 | 45.83 | 56.86 | 5.24 | 7.87 | 12.62 | 9.56 | 14.62 | 18.38 |
| 1990 | 69 | 1071 | 60.71 | 50 | 55.56 | 7.42 | 11.03 | 9.25 | 10.12 | 17.53 | 29.91 |
| 1991 | 70 | 599 | 80 | 50 | 65 | 2.8 | 8.98 | 5.49 | 7.94 | 18.8 | 29.64 |