Event: NSDCA Division 3

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Opponent Rating Result
David M Rose 1535 1 - 0
Lea Podmore 1451 0 - 1
Nigel Gardner 1558 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1515 = (4544 + 400 * (1 - 1)) / 3)

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