Event: SCCU County Championship: U1650

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Opponent	Rating	Result
Michael J Gunn	1623	½ - ½
David M Rogers	1600	1 - 0
Anthony M Langley	1580	1 - 0

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

1868 = (4803 + 400 * (2 - 0)) / 3)