Event: WDCL Division 2

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Opponent Rating Result
Paul Christopher Thomas 1746 0 - 1
Colin Mather 1461 0 - 1
John Gillett 1450 0 - 1
Jan Minarcik 900 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

989 = (5557 + 400 * (0 - 4)) / 4)

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