Event: Division 2

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Opponent Rating Result
William H Luxton 1726 ½ - ½
Paul R Selby 1748 0 - 1
Asanka Amarasinghe 1771 ½ - ½
Zebadiah Taylor 1637 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1521 = (6882 + 400 * (0 - 2)) / 4)

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