| Opponent |
Rating |
Result |
| Edward I Long |
0 |
1 - 0 |
| Gerald F Parfett |
0 |
0 - 1 |
| R England |
0 |
1 - 0 |
| David A Tidmarsh |
0 |
1 - 0 |
| Robert K Thomas |
0 |
0 - 1 |
| Stephen Millard |
0 |
1 - 0 |
| Michael JM Rose |
0 |
0 - 1 |
performance = (sum(opponents ratings) + 400(wins-losses)) / games
57 = (0 + 400 * (4 - 3)) / 7)
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