Event: Clough (Handicap)

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Opponent Rating Result
Andrew Walker 1419 1 - 0
Richard Zaidman 1678 ½ - ½
Les Johnson 1665 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1721 = (4762 + 400 * (1 - 0)) / 3)

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Opponent Rating Result
Richard Porter 1887 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1887 = (1887 + 400 * (0 - 0)) / 1)