| Opponent |
Rating |
Result |
| Peter A Wilson |
145 |
0 - 1 |
| Simon Dale |
0 |
1 - 0 |
| John Cox |
82 |
1 - 0 |
| Robert Tinton |
123 |
0 - 1 |
| Colin Wilks |
113 |
1 - 0 |
| Dennis Davies |
103 |
1 - 0 |
performance = (sum(opponents ratings) + 400(wins-losses)) / games
228 = (566 + 400 * (4 - 2)) / 6)
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