| Opponent |
Rating |
Result |
| Peter JE Ackley |
189 |
0 - 1 |
| D Martin Howard |
175 |
0 - 1 |
| Kevin J Dalley |
159 |
0 - 1 |
| Steve J Gibbs |
153 |
1 - 0 |
| Ranjit Nath |
155 |
½ - ½ |
| Maurice J Hill |
147 |
0 - 1 |
performance = (sum(opponents ratings) + 400(wins-losses)) / games
-37 = (978 + 400 * (1 - 4)) / 6)
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