| Opponent |
Rating |
Result |
| Andrew A Clarkson |
192 |
0 - 1 |
| Andrew Hargreaves |
154 |
½ - ½ |
| Peter Dickinson |
116 |
½ - ½ |
| Ian Williamson |
145 |
1 - 0 |
| Andrew A Clarkson |
192 |
½ - ½ |
| Andrew Swales |
121 |
½ - ½ |
performance = (sum(opponents ratings) + 400(wins-losses)) / games
153 = (920 + 400 * (1 - 1)) / 6)
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