Event: 4-Board Division 2

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Opponent	Rating	Result
Nick Colley	1413	½ - ½
Ron V Kemp	1323	1 - 0
David J Gibson	1533	½ - ½

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

1556 = (4269 + 400 * (1 - 0)) / 3)