Event: Division 5

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Opponent Rating Result
Paul Shelley 92 1 - 0
Neville S Jones 104 1 - 0
David A Fuller 122 ½ - ½
Philip Wright 90 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

402 = (408 + 400 * (3 - 0)) / 4)

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