Opponent |
Rating |
Result |
P John Helliwell |
1408 |
0 - 1 |
Geoff Frost |
1807 |
½ - ½ |
Robert Porter |
1604 |
½ - ½ |
Elliott Spencer |
1433 |
1 - 0 |
Rob Vincent |
1693 |
0 - 1 |
performance = (sum(opponents ratings) + 400(wins-losses)) / games
1509 = (7945 + 400 * (1 - 2)) / 5)
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