| 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 |
| 1975 | 12 | 361 | 37.50 | 66.67 | 50.00 | 29.52 | 11.84 | 14.54 | 12.95 | 24.05 | 35.42 |
| 1976 | 13 | 884 | 72.50 | 55.56 | 64.47 | 14.33 | 10.17 | 12.22 | 11.33 | 24.09 | 28.41 |
| 1977 | 14 | 882 | 82.35 | 69.44 | 75.71 | 10.75 | 10.97 | 9.59 | 10.19 | 26.54 | 33.31 |
| 1978 | 15 | 1459 | 79.31 | 53.23 | 65.83 | 11.75 | 10.28 | 11.71 | 10.93 | 25.74 | 31.88 |
| 1979 | 16 | 975 | 73.81 | 60.53 | 67.50 | 12.44 | 9.80 | 11.35 | 10.35 | 25.25 | 30.33 |
| 1980 | 17 | 1115 | 85.42 | 75.00 | 80.44 | 7.68 | 10.14 | 10.20 | 10.17 | 26.98 | 35.23 |
| 1981 | 18 | 1627 | 72.73 | 64.06 | 68.46 | 7.85 | 9.39 | 9.74 | 9.54 | 25.91 | 34.34 |
| 1982 | 19 | 817 | 82.50 | 72.50 | 77.50 | 5.19 | 8.64 | 10.71 | 9.48 | 27.65 | 31.31 |
| 1983 | 20 | 957 | 67.50 | 71.88 | 69.44 | 1.79 | 9.62 | 10.64 | 10.13 | 21.11 | 29.96 |
| 1984 | 21 | 1124 | 55.56 | 46.15 | 50.94 | 0.00 | 9.74 | 10.76 | 10.29 | 17.51 | 31.63 |
| 1985 | 22 | 1419 | 66.67 | 53.70 | 60.19 | 12.13 | 8.07 | 8.78 | 8.35 | 19.05 | 28.92 |
| 1986 | 23 | 1281 | 78.85 | 54.17 | 67.00 | 5.08 | 8.75 | 9.11 | 8.89 | 21.04 | 28.82 |
| 1987 | 24 | 864 | 61.77 | 55.56 | 58.57 | 14.63 | 9.15 | 9.13 | 9.14 | 19.06 | 23.39 |
| 1988 | 25 | 1852 | 79.41 | 67.50 | 72.97 | 7.51 | 8.68 | 8.58 | 8.63 | 23.54 | 29.28 |
| 1989 | 26 | 1417 | 78.57 | 71.43 | 75.00 | 3.74 | 9.57 | 8.87 | 9.23 | 25.48 | 28.67 |
| 1990 | 27 | 1178 | 73.81 | 52.27 | 62.79 | 7.68 | 11.56 | 9.84 | 10.78 | 26.45 | 32.59 |
| 1991 | 28 | 1174 | 71.43 | 62.50 | 66.67 | 12.55 | 9.43 | 8.88 | 9.16 | 21.50 | 28.79 |
| 1992 | 29 | 1037 | 85.00 | 67.50 | 76.25 | 7.54 | 10.58 | 8.12 | 9.47 | 28.71 | 35.41 |
| 1993 | 30 | 952 | 79.41 | 60.00 | 68.92 | 4.70 | 10.33 | 10.19 | 10.28 | 23.76 | 35.62 |
| 1994 | 31 | 1368 | 80.77 | 55.56 | 67.93 | 8.97 | 11.48 | 12.17 | 11.73 | 29.23 | 39.86 |
| 1995 | 32 | 1169 | 63.46 | 62.07 | 62.73 | 11.30 | 11.49 | 6.42 | 8.62 | 21.85 | 38.13 |
| 1996 | 33 | 937 | 73.68 | 63.89 | 68.92 | 8.10 | 10.77 | 9.71 | 10.32 | 26.51 | 36.24 |
| 1997 | 34 | 824 | 83.33 | 61.77 | 71.88 | 1.93 | 11.51 | 10.57 | 11.05 | 26.10 | 35.76 |
| 1998 | 35 | 413 | 61.11 | 55.56 | 58.33 | 0.00 | 6.62 | 6.24 | 6.51 | 18.26 | 38.53 |
| 1999 | 36 | 914 | 80.56 | 72.22 | 76.39 | 1.61 | 8.46 | 12.06 | 10.16 | 32.96 | 36.29 |
| 2000 | 37 | 1256 | 70.00 | 54.17 | 62.25 | 2.29 | 9.19 | 8.19 | 8.82 | 20.49 | 27.01 |
| 2001 | 38 | 1083 | 77.50 | 65.91 | 71.43 | 0.00 | 8.57 | 10.47 | 9.35 | 24.08 | 33.83 |
| 2002 | 39 | 557 | 81.82 | 65.00 | 73.81 | 3.51 | 11.16 | 11.13 | 11.16 | 22.73 | 30.47 |
| 2003 | 40 | 480 | 72.22 | 50.00 | 61.11 | 14.09 | 11.68 | 6.67 | 10.68 | 18.27 | 29.75 |
| 2004 | 41 | 932 | 67.65 | 52.94 | 60.29 | 3.65 | 7.54 | 12.28 | 9.12 | 21.31 | 41.43 |
| 2005 | 42 | 282 | 66.67 | 66.67 | 66.67 | 0.00 | 11.20 | 10.76 | 10.96 | 25.00 | 29.72 |