| Opponent |
Rating |
Result |
| Peter Martin |
0 |
1 - 0 |
| Robert Tinton |
123 |
1 - 0 |
| Patrick N Coleman |
104 |
1 - 0 |
| Peter A Wilson |
145 |
1 - 0 |
| Dennis Davies |
103 |
0 - 1 |
| John G Cooper |
170 |
½ - ½ |
performance = (sum(opponents ratings) + 400(wins-losses)) / games
308 = (645 + 400 * (4 - 1)) / 6)
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