Event: 4-Board Division 2

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Opponent	Rating	Result
N Charles Clayton	1501	½ - ½
Dave M Cooper	1516	1 - 0
David Atkin	1350	1 - 0

performance = (sum(opponents ratings) + 400(wins-losses)) / games

1722 = (4367 + 400 * (2 - 0)) / 3)