| 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 |
| 1909 | 20 | 563 | 68.18 | 62.50 | 65.22 | 4.00 | 12.25 | 8.66 | 10.05 | 18.14 | 29.27 |
| 1910 | 21 | ||||||||||
| 1911 | 22 | 314 | 83.33 | 57.14 | 69.23 | 5.18 | 7.67 | 8.77 | 8.14 | 17.19 | 21.33 |
| 1912 | 23 | 117 | 100.00 | 75.00 | 87.50 | 11.63 | 8.52 | 6.00 | 8.09 | 19.84 | 21.59 |
| 1913 | 24 | 285 | 80.00 | 100.00 | 90.00 | 10.53 | 7.59 | 8.16 | 7.88 | 22.34 | 23.65 |
| 1914 | 25 | 665 | 73.08 | 79.17 | 76.00 | 6.74 | 10.02 | 9.47 | 9.73 | 19.90 | 26.36 |
| 1915 | 26 | 400 | 92.86 | 92.86 | 92.86 | 0.00 | 9.07 | 8.57 | 8.81 | 20.70 | 22.61 |
| 1916 | 27 | 486 | 93.75 | 72.22 | 82.35 | 5.29 | 8.12 | 6.22 | 7.27 | 21.24 | 25.08 |
| 1917 | 28 | ||||||||||
| 1918 | 29 | 363 | 91.67 | 83.33 | 87.50 | 0.00 | 7.19 | 10.32 | 8.74 | 21.24 | 22.37 |
| 1919 | 30 | 278 | 100.00 | 91.67 | 95.46 | 4.07 | 12.16 | 7.03 | 9.37 | 20.10 | 21.81 |
| 1920 | 31 | ||||||||||
| 1921 | 32 | 351 | 64.29 | 64.29 | 64.29 | 0.00 | 12.89 | 6.31 | 9.60 | 12.77 | 11.68 |
| 1922 | 33 | 381 | 92.86 | 81.25 | 86.67 | 0.00 | 10.88 | 8.78 | 9.94 | 26.31 | 28.40 |
| 1923 | 34 | ||||||||||
| 1924 | 35 | 522 | 80.00 | 65.00 | 72.50 | 3.13 | 10.64 | 9.26 | 10.10 | 20.03 | 27.35 |
| 1925 | 36 | 458 | 60.00 | 75.00 | 67.50 | 22.90 | 10.58 | 6.50 | 8.71 | 30.07 | 46.70 |
| 1926 | 37 | 197 | 62.50 | 87.50 | 75.00 | 0.00 | 9.15 | 7.21 | 7.58 | 16.52 | 21.54 |
| 1927 | 38 | 1361 | 55.56 | 53.70 | 54.63 | 6.11 | 9.52 | 6.93 | 8.26 | 15.76 | 36.80 |
| 1928 | 39 | 768 | 73.53 | 66.67 | 70.31 | 4.89 | 9.30 | 8.55 | 9.09 | 23.51 | 34.60 |
| 1929 | 40 | 1520 | 85.48 | 72.73 | 78.91 | 3.02 | 7.83 | 9.26 | 8.55 | 18.56 | 22.87 |
| 1930 | 41 | 243 | 87.50 | 60.00 | 72.22 | 5.59 | 4.09 | 9.01 | 6.52 | 18.61 | 25.28 |
| 1931 | 42 | 522 | 77.27 | 75.00 | 76.19 | 12.46 | 9.58 | 6.16 | 7.94 | 20.60 | 25.70 |
| 1932 | 43 | ||||||||||
| 1933 | 44 | ||||||||||
| 1934 | 45 | 110 | 50.00 | 75.00 | 62.50 | 0.00 | 14.12 | 11.17 | 13.00 | 15.57 | 19.66 |
| 1935 | 46 | 772 | 76.47 | 56.25 | 66.67 | 2.15 | 10.32 | 11.68 | 11.06 | 16.53 | 25.85 |
| 1936 | 47 | 1021 | 77.50 | 69.05 | 73.17 | 6.69 | 8.87 | 11.39 | 10.03 | 17.26 | 22.06 |
| 1937 | 48 | 342 | 57.14 | 50.00 | 53.57 | 0.00 | 3.56 | 9.26 | 7.44 | 14.75 | 25.72 |
| 1938 | 49 | 536 | 72.73 | 36.36 | 54.55 | 8.40 | 10.42 | 10.36 | 10.39 | 19.72 | 30.84 |
| 1939 | 50 | 601 | 82.14 | 60.00 | 72.92 | 3.53 | 9.68 | 16.20 | 11.00 | 17.81 | 23.40 |