Event: Division 2

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Opponent	Rating	Result
Alex Mckeigue	1839	½ - ½
George I Miller	1962	0 - 1
Stephen J Meyler	1872	1 - 0

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

1891 = (5673 + 400 * (1 - 1)) / 3)