Event: Division Four

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Opponent Rating Result
Aaron Norton 1544 0 - 1
David M Cotterell 1546 ½ - ½
Des J Green 1106 1 - 0
Milo Ward 1650 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1362 = (5846 + 400 * (1 - 2)) / 4)

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