Event: NSDCA Division 3

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Opponent	Rating	Result
Colin Abell	1537	½ - ½
David P Price	1666	0 - 1
Julian P Cook	1388	1 - 0

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

1530 = (4591 + 400 * (1 - 1)) / 3)