Event: SCCU County Championship: U1850

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Opponent	Rating	Result
Robert G Thompson	1639	0 - 1
Peter A Lawrence	1663	½ - ½
David Carpenter	1619	½ - ½

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

1507 = (4921 + 400 * (0 - 1)) / 3)