Event: SCCU County Championship: Open

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Opponent	Rating	Result
Jake M Modica	1930	0 - 1
Nevil Chan	1968	1 - 0
David S Tucker	2095	½ - ½

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

1998 = (5993 + 400 * (1 - 1)) / 3)