| 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 |
| 1910 | 17 | 433 | 62.50 | 44.44 | 52.94 | 21.10 | 10.41 | 12.77 | 11.60 | 19.55 | 33.89 |
| 1911 | 18 | 718 | 57.69 | 50.00 | 54.00 | 7.17 | 12.75 | 8.68 | 10.36 | 17.59 | 22.31 |
| 1912 | 19 | 640 | 63.33 | 79.17 | 70.37 | 10.87 | 9.71 | 13.79 | 11.73 | 30.29 | 37.56 |
| 1913 | 20 | 774 | 84.62 | 67.65 | 75.00 | 14.79 | 9.22 | 11.57 | 10.46 | 27.60 | 30.24 |
| 1914 | 21 | 1137 | 54.35 | 79.55 | 66.67 | 18.68 | 10.97 | 9.51 | 10.21 | 26.15 | 31.49 |
| 1915 | 22 | 128 | 75.00 | 100.00 | 91.67 | 10.10 | 33.92 | 14.94 | 17.86 | 38.56 | 50.79 |
| 1916 | 23 | 32 | 50.00 | 50.00 | 23.98 | ||||||
| 1917 | 24 | 20 | 100.00 | 100.00 | 0.00 | 12.11 | 12.11 | 14.11 | 14.11 | ||
| 1918 | 25 | ||||||||||
| 1919 | 26 | 126 | 100.00 | 100.00 | 100.00 | 15.87 | 10.17 | 10.08 | 10.11 | 26.38 | 26.38 |
| 1920 | 27 | 148 | 50.00 | 75.00 | 71.43 | 14.93 | 0.00 | 10.34 | 10.34 | 22.55 | 36.28 |
| 1921 | 28 | 782 | 83.33 | 70.00 | 77.27 | 5.60 | 7.28 | 9.23 | 7.99 | 23.05 | 29.67 |
| 1922 | 29 | 1344 | 67.24 | 81.48 | 74.11 | 4.35 | 11.13 | 9.20 | 10.17 | 21.05 | 26.05 |
| 1923 | 30 | 797 | 73.53 | 73.08 | 73.33 | 5.07 | 9.51 | 8.57 | 9.13 | 23.77 | 31.81 |
| 1924 | 31 | 521 | 60.00 | 60.00 | 60.00 | 0.00 | 12.78 | 10.64 | 11.71 | 19.44 | 34.25 |
| 1925 | 32 | 900 | 87.50 | 71.05 | 79.49 | 10.05 | 9.59 | 8.20 | 8.97 | 18.25 | 21.41 |
| 1926 | 33 | 1333 | 70.46 | 80.77 | 76.04 | 9.52 | 9.31 | 9.49 | 9.41 | 21.13 | 25.96 |
| 1927 | 34 | 1776 | 63.24 | 56.94 | 60.00 | 4.76 | 8.09 | 9.85 | 9.03 | 15.28 | 22.88 |
| 1928 | 35 | ||||||||||
| 1929 | 36 | 950 | 76.47 | 64.71 | 70.59 | 4.64 | 11.53 | 8.78 | 9.93 | 20.78 | 28.15 |
| 1930 | 37 | 626 | 100.00 | 91.67 | 95.83 | 1.72 | 8.86 | 8.66 | 8.77 | 22.11 | 23.17 |
| 1931 | 38 | 1042 | 84.09 | 70.46 | 77.27 | 2.89 | 10.45 | 7.96 | 9.35 | 22.16 | 28.77 |
| 1932 | 39 | 1217 | 89.13 | 78.26 | 83.70 | 5.48 | 10.93 | 9.72 | 10.37 | 19.00 | 21.97 |
| 1933 | 40 | 1001 | 80.00 | 77.78 | 78.95 | 0.00 | 8.77 | 8.80 | 8.78 | 18.86 | 22.58 |
| 1934 | 41 | 1232 | 69.05 | 73.91 | 71.59 | 2.59 | 10.75 | 11.87 | 11.38 | 19.71 | 25.85 |
| 1935 | 42 | 1361 | 71.15 | 53.45 | 61.82 | 9.25 | 11.23 | 11.77 | 11.50 | 20.65 | 33.25 |
| 1936 | 43 | 1781 | 73.53 | 71.21 | 72.39 | 3.74 | 9.04 | 9.22 | 9.12 | 19.33 | 23.91 |
| 1937 | 44 | 1683 | 77.42 | 46.77 | 62.10 | 13.17 | 9.02 | 9.61 | 9.28 | 19.30 | 26.06 |
| 1938 | 45 | 1147 | 86.36 | 59.09 | 72.73 | 5.59 | 11.46 | 9.44 | 10.73 | 23.32 | 30.82 |
| 1939 | 46 | 773 | 90.00 | 84.62 | 87.50 | 8.70 | 9.31 | 9.34 | 9.32 | 21.38 | 25.84 |
| 1940 | 47 | ||||||||||
| 1941 | 48 | 732 | 76.92 | 69.23 | 73.08 | 4.62 | 9.49 | 14.48 | 11.53 | 21.92 | 26.58 |
| 1942 | 49 | 1083 | 85.71 | 69.44 | 78.21 | 10.99 | 11.36 | 10.45 | 10.98 | 18.77 | 22.31 |
| 1943 | 50 | 817 | 87.50 | 76.67 | 82.26 | 8.59 | 10.09 | 9.14 | 9.66 | 21.35 | 24.98 |
| 1944 | 51 | 210 | 87.50 | 100.00 | 93.75 | 5.62 | 7.36 | 9.42 | 8.60 | 26.71 | 30.49 |
| 1945 | 52 | 529 | 71.43 | 83.33 | 78.95 | 2.43 | 12.72 | 13.20 | 13.03 | 21.78 | 24.93 |
| 1946 | 53 | 53 | 50.00 | 50.00 | 50.00 | 64.52 | 0.00 | 10.84 | 10.84 | 21.38 | 9.71 |