| Opponent |
Rating |
Result |
| Clive J Le Baigue |
111 |
1 - 0 |
| Ian A Hames |
151 |
0 - 1 |
| John L Clarke |
75 |
0 - 1 |
| Patrick Burns |
174 |
0 - 1 |
| Colin G Gregory |
118 |
0 - 1 |
performance = (sum(opponents ratings) + 400(wins-losses)) / games
-114 = (629 + 400 * (1 - 4)) / 5)
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