| Opponent |
Rating |
Result |
| David E Hall |
1938 |
1 - 0 |
| Oliver J Lenton |
1981 |
0 - 1 |
| Piotr Wasilak |
0 |
½ - ½ |
| Steve J Pullinger |
1988 |
½ - ½ |
| Paul McMahon |
1920 |
0 - 1 |
| Piotr Wasilak |
0 |
½ - ½ |
performance = (sum(opponents ratings) + 400(wins-losses)) / games
1238 = (7827 + 400 * (1 - 2)) / 6)
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