| Opponent |
Rating |
Result |
| Stephen J Emmerton |
131 |
0 - 1 |
| John A White |
56 |
1 - 0 |
| Grenville Cross |
107 |
0 - 1 |
| Ernest Wilkinson |
91 |
0 - 1 |
| Robert L West |
93 |
½ - ½ |
performance = (sum(opponents ratings) + 400(wins-losses)) / games
-64 = (478 + 400 * (1 - 3)) / 5)
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