| Opponent |
Rating |
Result |
| Dennis R Cowley |
173 |
0 - 1 |
| David J Archer |
154 |
0 - 1 |
| Stephen J Homer |
181 |
0 - 1 |
| David J Archer |
154 |
½ - ½ |
| Peter E Halmkin |
147 |
1 - 0 |
| Trefor F Thynne |
170 |
0 - 1 |
performance = (sum(opponents ratings) + 400(wins-losses)) / games
-37 = (979 + 400 * (1 - 4)) / 6)
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