Event: NSDCA Division 1

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Opponent Rating Result
John M Turner 1943 0 - 1
Philip J Cattermole 1795 ½ - ½
Lea Podmore 1414 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1717 = (5152 + 400 * (1 - 1)) / 3)

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