Event: E (1) Division

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Opponent Rating Result
David Boulden 1712 ½ - ½
Elliott Barnett 1699 0 - 1
Brian J Forrest 1418 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1610 = (4829 + 400 * (1 - 1)) / 3)

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