Event: SCCU County Championship: Open

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Opponent	Rating	Result
Philip M Stimpson	1944	1 - 0
Andrew Gilfillan	2123	½ - ½
James M Wheeler	1909	1 - 0
Anthony R Fulton	2062	½ - ½
Graham DJ Keane	2179	½ - ½
James C Mansson	2090	½ - ½

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

2185 = (12307 + 400 * (2 - 0)) / 6)