| Opponent |
Rating |
Result |
| Robert A Newton |
179 |
0 - 1 |
| Michael Johnson |
132 |
1 - 0 |
| Roger Keely |
177 |
½ - ½ |
| William J Egan |
120 |
½ - ½ |
| Siefaldin A Holi |
151 |
0 - 1 |
| Paul Howden |
140 |
½ - ½ |
performance = (sum(opponents ratings) + 400(wins-losses)) / games
83 = (899 + 400 * (1 - 2)) / 6)
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