Event: WDCL Division 2

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Opponent Rating Result
Paul J Massey 1748 0 - 1
Nick Cooke 1458 0 - 1
David Tomkins 1527 0 - 1
Sean Murphy 1434 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1142 = (6167 + 400 * (0 - 4)) / 4)

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