| Opponent |
Rating |
Result |
| Ian A Robson |
183 |
0 - 1 |
| John CH Jones |
60 |
1 - 0 |
| Ian R White |
170 |
0 - 1 |
| Alun Richards |
140 |
½ - ½ |
| TW Anthony Pilkington |
92 |
1 - 0 |
| John S Burrows |
122 |
1 - 0 |
performance = (sum(opponents ratings) + 400(wins-losses)) / games
195 = (767 + 400 * (3 - 2)) / 6)
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