| 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 |
| 1969 | 18 | 2275 | 76.00 | 77.27 | 76.60 | 6.40 | 11.14 | 8.92 | 10.18 | 20.85 | 25.33 |
| 1970 | 19 | 3095 | 75.00 | 69.49 | 72.44 | 6.15 | 10.04 | 8.49 | 9.41 | 18.60 | 23.33 |
| 1971 | 20 | 4214 | 75.54 | 61.77 | 68.93 | 3.57 | 9.97 | 7.43 | 9.06 | 16.24 | 20.34 |
| 1972 | 21 | 4084 | 78.65 | 58.43 | 68.90 | 5.92 | 9.73 | 8.33 | 9.24 | 16.05 | 20.06 |
| 1973 | 22 | 4816 | 78.00 | 63.54 | 70.92 | 5.50 | 9.83 | 9.07 | 9.53 | 17.18 | 21.93 |
| 1974 | 23 | 4446 | 75.84 | 62.20 | 69.30 | 5.88 | 8.93 | 9.51 | 9.15 | 17.81 | 23.83 |
| 1975 | 24 | 4633 | 73.16 | 60.67 | 67.12 | 4.28 | 8.82 | 9.53 | 9.08 | 17.72 | 25.70 |
| 1976 | 25 | 4120 | 73.53 | 60.84 | 67.26 | 4.50 | 8.84 | 8.11 | 8.59 | 17.70 | 25.93 |
| 1977 | 26 | 4222 | 76.40 | 66.47 | 71.55 | 4.04 | 9.16 | 8.11 | 8.78 | 17.36 | 23.16 |
| 1978 | 27 | 4258 | 75.00 | 64.02 | 69.64 | 3.59 | 8.96 | 7.99 | 8.56 | 17.17 | 21.89 |
| 1979 | 28 | 3848 | 75.63 | 60.42 | 68.42 | 3.17 | 9.48 | 8.58 | 9.16 | 17.09 | 21.26 |
| 1980 | 29 | 3908 | 70.59 | 56.41 | 63.80 | 5.23 | 9.35 | 8.52 | 9.05 | 16.29 | 21.60 |
| 1981 | 30 | 4080 | 72.78 | 59.64 | 66.47 | 4.83 | 9.33 | 8.57 | 9.08 | 16.91 | 21.68 |
| 1982 | 31 | 4475 | 72.45 | 57.30 | 65.24 | 4.96 | 9.18 | 8.65 | 9.01 | 16.39 | 21.89 |
| 1983 | 32 | 4125 | 73.03 | 57.14 | 65.32 | 2.86 | 9.73 | 8.13 | 9.25 | 17.29 | 24.01 |
| 1984 | 33 | 3971 | 71.98 | 54.60 | 63.48 | 2.63 | 9.58 | 8.94 | 9.40 | 16.59 | 25.15 |
| 1985 | 34 | 3862 | 65.34 | 54.60 | 60.00 | 3.67 | 8.97 | 9.41 | 9.12 | 15.43 | 22.82 |
| 1986 | 35 | 4315 | 63.74 | 51.58 | 57.53 | 3.96 | 8.14 | 9.91 | 8.98 | 14.13 | 20.96 |
| 1987 | 36 | 4683 | 63.19 | 52.66 | 57.84 | 4.64 | 8.87 | 9.35 | 9.11 | 13.51 | 18.21 |
| 1988 | 37 | 6051 | 73.08 | 54.24 | 63.62 | 3.70 | 8.11 | 9.38 | 8.61 | 15.52 | 21.95 |
| 1989 | 38 | 5708 | 75.00 | 55.96 | 65.70 | 4.39 | 7.52 | 9.20 | 8.05 | 16.41 | 21.63 |
| 1990 | 39 | 5337 | 75.93 | 53.88 | 65.17 | 3.58 | 6.98 | 10.00 | 7.96 | 16.83 | 22.95 |
| 1991 | 40 | 4789 | 70.53 | 50.54 | 60.64 | 3.96 | 7.57 | 9.76 | 8.28 | 15.66 | 21.82 |
| 1992 | 41 | 5101 | 70.92 | 51.03 | 61.03 | 3.35 | 8.41 | 10.37 | 9.18 | 16.13 | 22.83 |
| 1993 | 42 | 6169 | 72.88 | 55.17 | 64.10 | 4.12 | 9.35 | 10.05 | 9.60 | 17.19 | 23.19 |
| 1994 | 43 | 5881 | 76.36 | 60.00 | 68.18 | 4.53 | 9.30 | 9.56 | 9.40 | 18.16 | 23.66 |
| 1995 | 44 | 5588 | 75.00 | 62.86 | 68.84 | 4.98 | 9.39 | 9.07 | 9.25 | 18.00 | 23.69 |
| 1996 | 45 | 5068 | 71.51 | 58.76 | 65.00 | 6.54 | 8.74 | 9.51 | 9.14 | 17.28 | 24.32 |
| 1997 | 46 | 3925 | 67.57 | 53.85 | 60.53 | 7.85 | 9.17 | 10.17 | 9.72 | 16.49 | 23.86 |
| 1998 | 47 | 3140 | 65.32 | 44.62 | 54.72 | 10.09 | 9.68 | 11.04 | 10.50 | 15.75 | 24.63 |
| 1999 | 48 | 2170 | 60.98 | 43.33 | 51.74 | 10.71 | 9.13 | 11.35 | 10.61 | 14.32 | 20.79 |