Event: WDCL Division 2

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Opponent Rating Result
Aidan Berry 1180 ½ - ½
Philip Clarke 1368 0 - 1
Anthony Wells 1413 ½ - ½
Andrew Rimmer 1200 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1090 = (5161 + 400 * (0 - 2)) / 4)

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