| 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 |
| 1934 | 22 | 2039 | 80.23 | 67.57 | 74.38 | 2.04 | 8.16 | 9.64 | 8.88 | 18.92 | 23.89 |
| 1935 | 23 | 2199 | 78.89 | 62.79 | 71.02 | 4.18 | 8.68 | 9.97 | 9.35 | 19.11 | 26.12 |
| 1936 | 24 | 2567 | 77.36 | 60.20 | 69.12 | 4.92 | 8.72 | 10.50 | 9.48 | 19.74 | 28.06 |
| 1937 | 25 | 2650 | 72.64 | 55.88 | 64.42 | 6.68 | 9.83 | 10.17 | 9.98 | 19.78 | 28.71 |
| 1938 | 26 | 2955 | 73.68 | 57.90 | 65.79 | 4.25 | 9.64 | 11.01 | 10.26 | 20.44 | 28.14 |
| 1939 | 27 | 3057 | 72.41 | 62.93 | 67.67 | 4.23 | 9.58 | 11.03 | 10.29 | 21.20 | 30.68 |
| 1940 | 28 | 2738 | 72.55 | 62.75 | 67.65 | 2.76 | 9.42 | 10.92 | 10.09 | 20.82 | 30.29 |
| 1941 | 29 | 2393 | 66.67 | 67.39 | 67.03 | 2.92 | 9.48 | 10.54 | 10.03 | 19.99 | 29.38 |
| 1942 | 30 | 2018 | 67.95 | 71.80 | 69.87 | 0.94 | 8.50 | 11.08 | 9.83 | 20.14 | 30.32 |
| 1943 | 31 | 1674 | 70.97 | 71.67 | 71.31 | 1.15 | 8.63 | 10.33 | 9.32 | 20.88 | 30.73 |
| 1944 | 32 | 1635 | 75.00 | 70.00 | 72.50 | 3.88 | 9.14 | 11.31 | 10.08 | 20.22 | 25.91 |
| 1945 | 33 | 1920 | 77.14 | 78.57 | 77.86 | 2.94 | 9.32 | 10.99 | 10.14 | 24.88 | 31.64 |
| 1946 | 34 | 2080 | 82.43 | 76.39 | 79.45 | 4.42 | 10.20 | 11.23 | 10.73 | 26.34 | 30.82 |
| 1947 | 35 | 2455 | 81.82 | 75.00 | 78.41 | 4.94 | 9.73 | 10.75 | 10.24 | 24.92 | 29.36 |
| 1948 | 36 | 2575 | 78.72 | 75.53 | 77.13 | 5.71 | 9.61 | 11.33 | 10.54 | 23.81 | 28.96 |
| 1949 | 37 | 2110 | 78.21 | 75.64 | 76.92 | 5.23 | 9.49 | 11.04 | 10.30 | 24.73 | 30.68 |
| 1950 | 38 | 1542 | 75.86 | 68.97 | 72.41 | 7.35 | 9.23 | 11.11 | 10.18 | 21.35 | 25.65 |
| 1951 | 39 | 2065 | 61.84 | 61.84 | 61.84 | 10.75 | 8.86 | 10.79 | 9.61 | 17.23 | 22.31 |
| 1952 | 40 | 2819 | 61.54 | 62.75 | 62.14 | 8.61 | 9.08 | 11.66 | 10.19 | 18.37 | 23.91 |
| 1953 | 41 | 2303 | 58.33 | 62.20 | 60.24 | 9.31 | 9.29 | 11.02 | 10.02 | 17.85 | 22.88 |
| 1954 | 42 | 3239 | 60.66 | 58.77 | 59.75 | 9.89 | 9.42 | 9.88 | 9.61 | 17.71 | 23.28 |
| 1955 | 43 | 3807 | 60.27 | 58.09 | 59.22 | 8.99 | 9.54 | 9.34 | 9.45 | 17.35 | 22.29 |
| 1956 | 44 | 3282 | 69.12 | 58.33 | 64.06 | 6.54 | 8.94 | 9.43 | 9.15 | 19.30 | 25.25 |
| 1957 | 45 | 2697 | 66.38 | 50.00 | 58.80 | 6.22 | 9.31 | 8.15 | 8.84 | 18.70 | 25.93 |
| 1958 | 46 | 3765 | 68.35 | 50.73 | 60.14 | 7.62 | 9.28 | 8.85 | 9.10 | 19.21 | 26.13 |
| 1959 | 47 | 2968 | 68.25 | 51.79 | 60.50 | 6.33 | 9.13 | 9.28 | 9.20 | 19.41 | 26.57 |
| 1960 | 48 | 3311 | 68.12 | 50.00 | 59.47 | 8.07 | 8.71 | 10.16 | 9.39 | 19.81 | 28.47 |
| 1961 | 49 | 3733 | 68.24 | 50.00 | 59.44 | 7.96 | 9.76 | 10.95 | 10.30 | 20.53 | 28.20 |
| 1962 | 50 | 3761 | 72.30 | 56.62 | 64.79 | 9.67 | 10.00 | 10.91 | 10.43 | 21.11 | 27.71 |
| 1963 | 51 | 3588 | 69.57 | 57.46 | 63.60 | 8.22 | 10.56 | 10.19 | 10.37 | 20.48 | 28.48 |
| 1964 | 52 | 3949 | 70.67 | 59.72 | 65.31 | 7.20 | 10.45 | 10.12 | 10.28 | 20.59 | 28.06 |
| 1965 | 53 | 3594 | 72.39 | 65.39 | 68.94 | 7.97 | 10.80 | 10.15 | 10.51 | 21.51 | 27.99 |
| 1966 | 54 | 3344 | 70.64 | 68.03 | 69.36 | 9.66 | 10.23 | 8.55 | 9.38 | 20.79 | 27.89 |
| 1967 | 55 | 3558 | 70.59 | 66.67 | 68.66 | 8.66 | 9.57 | 8.36 | 8.98 | 19.76 | 26.53 |
| 1968 | 56 | 2924 | 72.88 | 70.37 | 71.68 | 9.11 | 9.09 | 8.50 | 8.83 | 20.51 | 26.18 |
| 1969 | 57 | 3213 | 71.97 | 65.87 | 68.99 | 8.54 | 8.70 | 9.30 | 8.98 | 19.44 | 24.27 |
| 1970 | 58 | 3080 | 70.31 | 62.50 | 66.53 | 7.36 | 8.04 | 9.04 | 8.52 | 18.07 | 23.61 |