| Opponent |
Rating |
Result |
| Jon F Catchpole |
157 |
½ - ½ |
| Reenen J Du Toit |
162 |
0 - 1 |
| Steve E Culleton |
155 |
0 - 1 |
| Steve E Culleton |
155 |
½ - ½ |
| Reenen J Du Toit |
162 |
½ - ½ |
| Richard W Ursell |
151 |
1 - 0 |
performance = (sum(opponents ratings) + 400(wins-losses)) / games
90 = (942 + 400 * (1 - 2)) / 6)
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