Event: Division B

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Opponent Rating Result
David R Lindley 101 ½ - ½
David Pendlebury 150 1 - 0
Parshottambhi D Patel 109 1 - 0
David G Clayton 113 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

418 = (473 + 400 * (3 - 0)) / 4)

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