| 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 |
| 1918 | 29 | 3193 | 81.90 | 75.83 | 78.81 | 4.87 | 8.76 | 8.55 | 8.66 | 19.96 | 24.37 |
| 1919 | 30 | 2908 | 86.54 | 80.56 | 83.49 | 4.88 | 8.82 | 8.35 | 8.59 | 20.34 | 23.56 |
| 1920 | 31 | 2908 | 86.54 | 80.56 | 83.49 | 4.88 | 8.82 | 8.35 | 8.59 | 20.34 | 23.56 |
| 1921 | 32 | 2945 | 83.96 | 81.48 | 82.71 | 4.57 | 9.21 | 8.18 | 8.70 | 19.69 | 22.91 |
| 1922 | 33 | 3209 | 84.48 | 81.67 | 83.05 | 3.71 | 9.49 | 8.28 | 8.88 | 20.45 | 23.71 |
| 1923 | 34 | 2924 | 84.91 | 80.00 | 82.41 | 2.80 | 9.71 | 8.29 | 9.01 | 20.29 | 23.72 |
| 1924 | 35 | 2781 | 87.00 | 77.36 | 82.04 | 1.98 | 9.84 | 8.15 | 9.04 | 20.33 | 23.79 |
| 1925 | 36 | 2839 | 81.13 | 75.00 | 77.98 | 5.20 | 10.07 | 7.84 | 9.04 | 21.84 | 26.76 |
| 1926 | 37 | 2550 | 77.55 | 76.47 | 77.00 | 4.82 | 10.50 | 8.09 | 9.33 | 21.54 | 26.73 |
| 1927 | 38 | 3911 | 69.74 | 68.59 | 69.16 | 5.12 | 10.29 | 7.83 | 9.09 | 19.50 | 28.27 |
| 1928 | 39 | 4316 | 68.97 | 67.24 | 68.10 | 5.67 | 10.39 | 7.61 | 9.13 | 20.06 | 30.17 |
| 1929 | 40 | 5558 | 72.12 | 67.54 | 69.82 | 4.93 | 9.47 | 8.27 | 8.91 | 19.64 | 28.25 |
| 1930 | 41 | 5801 | 72.65 | 67.23 | 69.92 | 4.97 | 9.17 | 8.32 | 8.77 | 19.60 | 28.10 |
| 1931 | 42 | 5972 | 73.55 | 68.03 | 70.78 | 5.86 | 9.06 | 8.19 | 8.66 | 20.11 | 28.60 |
| 1932 | 43 | 5591 | 72.37 | 67.11 | 69.74 | 6.47 | 8.88 | 8.14 | 8.53 | 19.72 | 28.62 |
| 1933 | 44 | 5591 | 72.37 | 67.11 | 69.74 | 6.47 | 8.88 | 8.14 | 8.53 | 19.72 | 28.62 |
| 1934 | 45 | 5179 | 71.23 | 67.45 | 69.34 | 6.66 | 8.82 | 8.10 | 8.48 | 19.59 | 28.53 |
| 1935 | 46 | 5493 | 73.01 | 65.18 | 69.11 | 4.58 | 8.88 | 8.85 | 8.87 | 18.31 | 26.71 |
| 1936 | 47 | 6317 | 74.03 | 65.12 | 69.57 | 5.09 | 8.88 | 9.38 | 9.11 | 18.19 | 26.01 |
| 1937 | 48 | 5298 | 77.52 | 66.97 | 72.25 | 4.79 | 8.70 | 9.75 | 9.19 | 18.59 | 24.96 |
| 1938 | 49 | 5066 | 77.67 | 63.81 | 70.67 | 5.07 | 8.72 | 9.88 | 9.30 | 17.99 | 24.02 |
| 1939 | 50 | 4147 | 75.58 | 59.76 | 67.86 | 5.78 | 9.26 | 10.51 | 9.84 | 17.76 | 24.49 |