Event: Division B

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Opponent Rating Result
David Tuke 135 ½ - ½
Dave S Almond 138 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-64 = (273 + 400 * (0 - 1)) / 2)

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Opponent Rating Result
Peter J Kobryn 157 0 - 1
Shaun Tumelty 87 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

122 = (244 + 400 * (1 - 1)) / 2)