| Opponent |
Rating |
Result |
| Ben R Wilkinson |
137 |
0 - 1 |
| Andy Proudfoot |
112 |
½ - ½ |
| Roy Greenhalgh |
115 |
0 - 1 |
| Ben R Wilkinson |
137 |
0 - 1 |
| Robert G Wilby |
138 |
0 - 1 |
performance = (sum(opponents ratings) + 400(wins-losses)) / games
-192 = (639 + 400 * (0 - 4)) / 5)
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