Event: Division 3

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Opponent Rating Result
Benjamin McGurrell 1641 ½ - ½
Peter Ackland 1524 ½ - ½
Tony Golding 1375 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1647 = (4540 + 400 * (1 - 0)) / 3)

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