| Opponent |
Rating |
Result |
| Robert Ashworth |
158 |
0 - 1 |
| Kevin N Bendall |
122 |
½ - ½ |
| John S Burrows |
120 |
½ - ½ |
| John Jenkins |
182 |
0 - 1 |
| Ainsley Killey |
120 |
1 - 0 |
performance = (sum(opponents ratings) + 400(wins-losses)) / games
60 = (702 + 400 * (1 - 2)) / 5)
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