Event: SCCU County Championship: U1850

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Opponent	Rating	Result
Michael Wickham	1716	½ - ½
William Phillips	1792	½ - ½
Christopher Willoughby	1731	0 - 1
Austin Ivan	1761	0 - 1
Michael Wickham	1716	0 - 1
Ian P Morgan	1785	½ - ½

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

1550 = (10501 + 400 * (0 - 3)) / 6)