Event: Division One

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Opponent Rating Result
Feliks J Kwiatkowski 2255 0 - 1
Robert S Eames 2186 ½ - ½
Dave J Ledger 2216 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1952 = (6657 + 400 * (0 - 2)) / 3)

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