| 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 |
| 1914 | 21 | 3702 | 63.19 | 67.36 | 65.28 | 14.33 | 10.52 | 10.82 | 10.68 | 24.69 | 31.25 |
| 1915 | 22 | 3397 | 63.64 | 72.39 | 68.05 | 13.62 | 10.78 | 10.86 | 10.82 | 25.90 | 31.93 |
| 1916 | 23 | 2711 | 64.82 | 77.27 | 71.10 | 15.18 | 10.38 | 11.42 | 10.93 | 28.01 | 33.38 |
| 1917 | 24 | 2091 | 65.39 | 77.27 | 71.69 | 16.36 | 10.59 | 10.82 | 10.72 | 27.24 | 31.94 |
| 1918 | 25 | 1317 | 55.77 | 83.33 | 69.81 | 17.49 | 11.66 | 10.31 | 10.90 | 27.03 | 33.33 |
| 1919 | 26 | 306 | 80.00 | 100.00 | 92.31 | 12.25 | 16.23 | 12.44 | 13.34 | 30.31 | 35.00 |
| 1920 | 27 | 326 | 75.00 | 85.00 | 82.14 | 14.09 | 10.17 | 10.45 | 10.40 | 23.54 | 28.31 |
| 1921 | 28 | 1076 | 83.33 | 76.00 | 79.35 | 8.01 | 7.57 | 9.77 | 8.63 | 23.16 | 29.30 |
| 1922 | 29 | 2400 | 74.00 | 78.43 | 76.24 | 6.07 | 9.50 | 9.38 | 9.44 | 22.05 | 27.77 |
| 1923 | 30 | 3197 | 73.88 | 77.34 | 75.57 | 5.80 | 9.50 | 9.19 | 9.36 | 22.48 | 28.76 |
| 1924 | 31 | 3592 | 71.33 | 73.94 | 72.60 | 4.76 | 9.72 | 9.25 | 9.51 | 21.92 | 29.30 |
| 1925 | 32 | 4344 | 75.00 | 73.21 | 74.16 | 5.63 | 9.69 | 8.97 | 9.38 | 21.13 | 27.29 |
| 1926 | 33 | 4895 | 72.45 | 75.79 | 74.09 | 6.77 | 10.11 | 9.11 | 9.62 | 20.82 | 26.48 |
| 1927 | 34 | 5327 | 70.87 | 67.79 | 69.32 | 7.10 | 9.39 | 9.26 | 9.32 | 18.86 | 25.85 |
| 1928 | 35 | 4530 | 70.35 | 67.03 | 68.64 | 7.60 | 9.35 | 9.39 | 9.37 | 18.01 | 24.46 |
| 1929 | 36 | 4959 | 72.58 | 67.35 | 69.90 | 7.45 | 9.57 | 9.16 | 9.35 | 18.39 | 24.68 |
| 1930 | 37 | 4685 | 72.94 | 69.78 | 71.31 | 5.71 | 9.40 | 9.24 | 9.31 | 18.91 | 25.09 |
| 1931 | 38 | 4394 | 76.47 | 66.67 | 71.51 | 3.53 | 9.74 | 8.84 | 9.29 | 19.02 | 25.84 |
| 1932 | 39 | 3835 | 86.49 | 75.00 | 80.74 | 3.88 | 10.47 | 8.86 | 9.69 | 20.81 | 25.16 |
| 1933 | 40 | 4836 | 85.11 | 75.54 | 80.38 | 3.14 | 10.15 | 8.85 | 9.52 | 20.41 | 24.68 |
| 1934 | 41 | 5118 | 83.16 | 77.04 | 80.10 | 2.75 | 10.05 | 9.60 | 9.84 | 20.16 | 24.36 |
| 1935 | 42 | 5853 | 78.57 | 69.57 | 74.01 | 4.20 | 10.48 | 10.18 | 10.34 | 20.07 | 26.06 |
| 1936 | 43 | 6592 | 76.21 | 69.84 | 73.00 | 4.30 | 10.08 | 10.28 | 10.18 | 19.54 | 25.00 |
| 1937 | 44 | 7058 | 74.24 | 63.06 | 68.61 | 6.22 | 9.62 | 10.24 | 9.92 | 19.58 | 25.97 |
| 1938 | 45 | 7204 | 75.37 | 60.51 | 67.83 | 7.08 | 10.11 | 10.37 | 10.23 | 20.27 | 27.40 |
| 1939 | 46 | 6745 | 78.13 | 60.55 | 69.34 | 8.13 | 9.91 | 9.88 | 9.89 | 20.50 | 27.42 |
| 1940 | 47 | 5384 | 79.90 | 62.63 | 71.39 | 7.89 | 9.65 | 9.40 | 9.54 | 20.47 | 26.33 |
| 1941 | 48 | 4335 | 82.10 | 60.13 | 71.25 | 8.97 | 9.85 | 10.25 | 10.02 | 21.18 | 27.34 |
| 1942 | 49 | 3735 | 85.21 | 68.94 | 77.37 | 7.87 | 10.64 | 10.60 | 10.62 | 21.34 | 26.23 |
| 1943 | 50 | 3405 | 85.39 | 74.58 | 80.24 | 8.72 | 10.23 | 10.52 | 10.35 | 20.67 | 24.65 |
| 1944 | 51 | 2842 | 84.26 | 74.00 | 79.33 | 8.45 | 10.35 | 10.78 | 10.54 | 20.84 | 24.70 |
| 1945 | 52 | 3371 | 82.79 | 75.81 | 79.27 | 7.43 | 10.63 | 11.35 | 10.97 | 20.98 | 24.74 |
| 1946 | 53 | 2692 | 83.67 | 76.47 | 80.00 | 8.90 | 10.92 | 10.76 | 10.84 | 20.73 | 24.25 |