Event: WDCL Division 2

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Opponent Rating Result
Raymond Weedall 1638 0 - 1
Graham Arthur 1271 0 - 1
Malcolm Spencer 1215 1 - 0
Anthony Oldham 1455 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1195 = (5579 + 400 * (1 - 3)) / 4)

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