| 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 |
| 1967 | 16 | 370 | 77.78 | 62.50 | 70.59 | 4.22 | 10.56 | 10.42 | 10.50 | 22.38 | 24.55 |
| 1968 | 17 | 771 | 85.29 | 86.67 | 85.94 | 12.07 | 11.97 | 12.14 | 12.05 | 25.23 | 29.22 |
| 1969 | 18 | 1134 | 68.75 | 76.19 | 72.22 | 2.69 | 10.75 | 5.97 | 8.78 | 17.60 | 22.27 |
| 1970 | 19 | 1190 | 74.07 | 52.17 | 64.00 | 4.80 | 7.89 | 8.13 | 7.98 | 15.59 | 18.74 |
| 1971 | 20 | 1890 | 80.49 | 59.76 | 70.12 | 3.48 | 10.60 | 8.22 | 9.85 | 15.83 | 20.02 |
| 1972 | 21 | 1004 | 80.95 | 63.16 | 72.50 | 10.54 | 9.85 | 8.64 | 9.37 | 17.06 | 21.31 |
| 1973 | 22 | 1922 | 73.68 | 68.06 | 70.95 | 4.00 | 8.69 | 9.95 | 9.29 | 18.55 | 24.35 |
| 1974 | 23 | 1520 | 75.00 | 53.70 | 64.91 | 3.21 | 8.33 | 9.73 | 8.67 | 17.32 | 25.66 |
| 1975 | 24 | 1191 | 70.37 | 57.69 | 64.15 | 6.26 | 9.64 | 7.76 | 9.14 | 16.90 | 28.69 |
| 1976 | 25 | 1409 | 75.00 | 70.00 | 72.41 | 4.46 | 8.71 | 7.64 | 8.21 | 18.82 | 24.57 |
| 1977 | 26 | 1622 | 82.35 | 70.69 | 76.98 | 2.73 | 9.20 | 8.78 | 9.07 | 16.46 | 19.54 |
| 1978 | 27 | 1227 | 64.58 | 47.83 | 56.38 | 3.91 | 8.70 | 7.47 | 8.10 | 16.27 | 22.36 |
| 1979 | 28 | 999 | 77.27 | 60.00 | 69.05 | 3.33 | 10.43 | 9.79 | 10.24 | 19.11 | 23.73 |
| 1980 | 29 | 1682 | 70.51 | 60.00 | 65.54 | 7.06 | 8.92 | 8.64 | 8.83 | 14.62 | 19.86 |
| 1981 | 30 | 1399 | 72.41 | 58.93 | 65.79 | 2.91 | 8.87 | 7.61 | 8.40 | 18.09 | 22.32 |
| 1982 | 31 | 1394 | 75.00 | 51.92 | 64.29 | 4.04 | 9.75 | 9.92 | 9.80 | 16.81 | 24.22 |
| 1983 | 32 | 1332 | 71.67 | 60.00 | 65.83 | 1.50 | 10.42 | 6.68 | 9.48 | 16.95 | 25.51 |
| 1984 | 33 | 1245 | 69.36 | 51.61 | 60.48 | 2.04 | 8.03 | 10.27 | 8.67 | 15.95 | 26.03 |
| 1985 | 34 | 1285 | 53.70 | 51.92 | 52.83 | 8.35 | 7.30 | 10.77 | 9.05 | 13.42 | 13.82 |
| 1986 | 35 | 1785 | 66.67 | 51.32 | 58.45 | 2.51 | 8.85 | 9.33 | 9.12 | 13.39 | 21.39 |
| 1987 | 36 | 1613 | 67.74 | 55.00 | 61.48 | 4.51 | 9.83 | 8.04 | 9.14 | 13.72 | 17.55 |
| 1988 | 37 | 2653 | 80.19 | 56.00 | 68.45 | 3.97 | 7.19 | 10.18 | 8.10 | 18.06 | 23.99 |
| 1989 | 38 | 1442 | 73.33 | 56.90 | 65.25 | 5.10 | 6.46 | 8.51 | 7.03 | 16.42 | 20.27 |
| 1990 | 39 | 1242 | 70.00 | 45.83 | 58.16 | 0.00 | 7.26 | 11.07 | 9.01 | 14.71 | 24.20 |
| 1991 | 40 | 2105 | 68.75 | 48.75 | 58.75 | 5.05 | 8.59 | 9.66 | 8.91 | 15.71 | 22.12 |
| 1992 | 41 | 1754 | 74.24 | 57.58 | 65.91 | 3.33 | 8.68 | 10.48 | 9.48 | 17.65 | 22.83 |
| 1993 | 42 | 2310 | 75.56 | 59.30 | 67.61 | 4.14 | 10.51 | 9.75 | 10.27 | 18.21 | 24.20 |
| 1994 | 43 | 1817 | 79.69 | 63.24 | 71.21 | 6.24 | 8.29 | 8.47 | 8.37 | 18.61 | 23.87 |
| 1995 | 44 | 1461 | 68.00 | 67.86 | 67.93 | 4.39 | 8.41 | 9.19 | 8.86 | 16.93 | 22.52 |
| 1996 | 45 | 1790 | 66.67 | 47.14 | 57.04 | 8.81 | 9.72 | 11.03 | 10.43 | 16.25 | 27.14 |
| 1997 | 46 | 674 | 69.23 | 43.33 | 55.36 | 13.12 | 9.26 | 10.21 | 9.77 | 16.18 | 18.72 |
| 1998 | 47 | 676 | 57.69 | 40.00 | 48.21 | 10.42 | 10.54 | 11.60 | 11.42 | 14.03 | 22.58 |
| 1999 | 48 | 820 | 56.67 | 46.67 | 51.67 | 6.49 | 7.78 | 12.57 | 10.64 | 13.09 | 22.42 |