Event: SCCA Division 2 19/20

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Opponent Rating Result
Rowland Kerr 130 ½ - ½
Andrew J Donnelly 150 ½ - ½
Alan Watkins 1763 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

814 = (2043 + 400 * (1 - 0)) / 3)

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