| Opponent |
Rating |
Result |
| Malcolm R Peacock |
189 |
0 - 1 |
| Boris Garanins |
111 |
1 - 0(def) |
| Patrick N Coleman |
106 |
½ - ½ |
| Graham J Ashcroft |
165 |
1 - 0 |
| David E Aspinall |
144 |
0 - 1 |
performance = (sum(opponents ratings) + 400(wins-losses)) / games
51 = (604 + 400 * (1 - 2)) / 4)
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