| Opponent |
Rating |
Result |
| Robert Parr |
0 |
1 - 0 |
| Michael N Jones |
0 |
½ - ½ |
| Gerald F Parfett |
0 |
0 - 1 |
| Tomas Lukosius |
0 |
0 - 1 |
| Robin Chisman |
0 |
0 - 1 |
| Patrick Staples |
0 |
½ - ½ |
| Tomas Lukosius |
0 |
0 - 1 |
performance = (sum(opponents ratings) + 400(wins-losses)) / games
-171 = (0 + 400 * (1 - 4)) / 7)
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