Event: Division One

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Opponent Rating Result
Iain A Galloway 187 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

587 = (187 + 400 * (1 - 0)) / 1)

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Opponent Rating Result
David Hulme 153 1 - 0
Iain A Galloway 187 0 - 1
Christopher J Bellin 181 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

174 = (521 + 400 * (1 - 1)) / 3)