Event: Division 3

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Opponent	Rating	Result
Matthew C Dodsley	0	½ - ½
Will Madeley	1390	½ - ½
Peter Bullough	1371	1 - 0

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

1054 = (2761 + 400 * (1 - 0)) / 3)