| Opponent |
Rating |
Result |
| Geoffrey W Lingard |
0 |
0 - 1 |
| David R Jenkins |
0 |
1 - 0 |
| Christine F Constable |
0 |
0 - 1 |
| Anthony Rundle |
0 |
1 - 0 |
| Robin FG Kneebone |
0 |
0 - 1 |
performance = (sum(opponents ratings) + 400(wins-losses)) / games
-80 = (0 + 400 * (2 - 3)) / 5)
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