Event: Division Three

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Opponent Rating Result
James Lyons 1730 1 - 0
Nicholas Groves-Kirkby 0 ½ - ½
Richard A Balatoni 1682 ½ - ½
Laurie Mackellar 132 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1086 = (3544 + 400 * (2 - 0)) / 4)

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