| Opponent |
Rating |
Result |
| Alan A Atkinson |
166 |
0 - 1 |
| Michael H Micklethwaite |
139 |
0 - 1 |
| John Thorley |
140 |
1 - 0 |
| Alan D Evans |
126 |
0 - 1 |
| Michael Davies |
94 |
1 - 0 |
performance = (sum(opponents ratings) + 400(wins-losses)) / games
53 = (665 + 400 * (2 - 3)) / 5)
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