| 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 |
| 1920 | 19 | 1573 | 68.75 | 68.92 | 68.84 | 18.30 | 12.26 | 11.53 | 11.81 | 23.44 | 32.23 |
| 1921 | 20 | 1886 | 67.86 | 51.32 | 60.00 | 21.85 | 13.74 | 12.05 | 12.89 | 22.70 | 31.40 |
| 1922 | 21 | 1145 | 50.00 | 54.76 | 52.22 | 16.53 | 11.92 | 9.71 | 10.79 | 19.47 | 25.63 |
| 1923 | 22 | 1856 | 77.14 | 74.36 | 75.68 | 17.22 | 11.81 | 10.75 | 11.27 | 24.41 | 31.04 |
| 1924 | 23 | 1071 | 80.95 | 60.87 | 70.46 | 10.00 | 9.22 | 11.38 | 10.52 | 20.55 | 24.49 |
| 1925 | 24 | 699 | 85.71 | 84.38 | 85.00 | 1.89 | 9.27 | 9.62 | 9.49 | 28.82 | 31.40 |
| 1926 | 25 | 976 | 72.22 | 70.00 | 71.05 | 12.21 | 11.15 | 9.69 | 10.47 | 21.65 | 26.82 |
| 1927 | 26 | 792 | 80.56 | 80.00 | 80.30 | 3.50 | 9.88 | 10.44 | 10.17 | 32.10 | 40.90 |
| 1928 | 27 | 1457 | 63.79 | 63.46 | 63.64 | 8.79 | 10.74 | 9.00 | 9.94 | 21.56 | 27.75 |
| 1929 | 28 | 615 | 76.92 | 50.00 | 64.00 | 26.49 | 14.24 | 11.93 | 13.04 | 22.06 | 29.71 |
| 1930 | 29 | 344 | 64.29 | 78.57 | 71.43 | 3.64 | 9.15 | 8.19 | 8.60 | 18.62 | 20.34 |
| 1931 | 30 | 751 | 71.88 | 40.00 | 56.45 | 14.58 | 9.22 | 9.70 | 9.40 | 19.61 | 24.11 |
| 1932 | 31 | 833 | 70.59 | 58.33 | 64.29 | 2.65 | 7.18 | 8.55 | 7.81 | 17.37 | 23.54 |
| 1933 | 32 | 60 | 83.33 | 100.00 | 87.50 | 21.28 | 9.83 | 13.50 | 10.61 | 30.33 | 33.63 |
| 1934 | 33 | 929 | 70.00 | 78.13 | 73.61 | 4.78 | 6.95 | 8.24 | 7.59 | 18.70 | 24.70 |
| 1935 | 34 | 884 | 70.59 | 38.89 | 54.29 | 20.41 | 8.52 | 12.38 | 9.85 | 22.55 | 28.61 |
| 1936 | 35 | 789 | 73.53 | 63.33 | 68.75 | 9.22 | 9.33 | 9.11 | 9.20 | 18.15 | 23.80 |
| 1937 | 36 | 1265 | 60.42 | 46.00 | 53.06 | 19.80 | 10.35 | 7.77 | 9.09 | 19.32 | 27.30 |
| 1938 | 37 | 1037 | 66.67 | 57.14 | 61.54 | 1.62 | 6.96 | 10.47 | 8.23 | 15.70 | 22.62 |
| 1939 | 38 | 1040 | 73.81 | 70.00 | 71.95 | 3.64 | 11.11 | 7.06 | 9.60 | 21.72 | 27.85 |
| 1940 | 39 | 776 | 76.47 | 53.13 | 65.15 | 10.17 | 11.64 | 9.25 | 10.53 | 21.43 | 28.40 |
| 1941 | 40 | 612 | 82.14 | 63.64 | 74.00 | 10.97 | 8.33 | 6.93 | 7.93 | 23.25 | 26.65 |
| 1942 | 41 | 224 | 80.00 | 80.00 | 80.00 | 0.00 | 8.46 | 4.75 | 6.76 | 26.00 | 26.69 |
| 1943 | 42 | ||||||||||
| 1944 | 43 | ||||||||||
| 1945 | 44 | 270 | 58.33 | 70.00 | 63.64 | 11.56 | 7.27 | 10.12 | 8.77 | 21.70 | 33.26 |
| 1946 | 45 | 1499 | 86.21 | 78.57 | 82.46 | 10.45 | 8.97 | 9.95 | 9.46 | 24.15 | 28.29 |
| 1947 | 46 | 843 | 64.71 | 59.38 | 62.12 | 12.80 | 11.56 | 9.16 | 10.47 | 25.21 | 34.41 |
| 1948 | 47 | 1167 | 47.92 | 42.00 | 44.90 | 16.69 | 8.31 | 12.13 | 10.21 | 22.53 | 37.09 |
| 1949 | 48 | 863 | 72.50 | 55.88 | 64.87 | 5.96 | 7.62 | 6.77 | 7.32 | 17.40 | 25.15 |
| 1950 | 49 | 1455 | 75.00 | 63.64 | 68.85 | 7.71 | 8.51 | 8.10 | 8.34 | 19.04 | 26.04 |
| 1951 | 50 | 302 | 71.43 | 75.00 | 73.08 | 11.86 | 9.97 | 7.00 | 9.10 | 14.20 | 15.15 |
| 1952 | 51 | 396 | 80.00 | 64.29 | 73.53 | 10.60 | 9.21 | 7.87 | 8.69 | 18.25 | 21.70 |
| 1953 | 52 | 953 | 50.00 | 45.00 | 47.44 | 5.60 | 9.77 | 9.44 | 9.61 | 17.75 | 31.69 |