| Opponent |
Rating |
Result |
| Petru Floresc |
184 |
0 - 1 |
| Simon R Edwards |
178 |
0 - 1 |
| Jon EW Blackburn |
139 |
½ - ½ |
| Geoff Laurence |
149 |
1 - 0 |
| David I Hulme |
135 |
½ - ½ |
| Philip J Colville |
140 |
0 - 1 |
performance = (sum(opponents ratings) + 400(wins-losses)) / games
21 = (925 + 400 * (1 - 3)) / 6)
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