Event: Division Cup A

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Opponent	Rating	Result
Nigel W Morris	1554	½ - ½
Mike P Maher	1699	1 - 0
David Copson	0	1 - 0

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

1351 = (3253 + 400 * (2 - 0)) / 3)