Event: Clough (Handicap)

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Opponent Rating Result
Derek Ludlam 114 0 - 1
Robert Pells 0 ½ - ½
David W Adam 139 ½ - ½
Les Johnson 129 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-5 = (382 + 400 * (0 - 1)) / 4)

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