| Opponent |
Rating |
Result |
| Huw D Jacob |
1388 |
1 - 0 |
| Paul R Barclay |
1740 |
½ - ½ |
| Vittorio Nigrelli |
1662 |
½ - ½ |
| John H Hodgson |
2215 |
0 - 1 |
| Michael GA Wilson |
1607 |
0 - 1 |
| David Brittain |
1469 |
1 - 0 |
performance = (sum(opponents ratings) + 400(wins-losses)) / games
1680 = (10081 + 400 * (2 - 2)) / 6)
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