Event: Division Three

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Opponent Rating Result
Andrew Hayler 161 0 - 1
Dipender Gill 119 1 - 0
Simon Harding 134 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

5 = (414 + 400 * (1 - 2)) / 3)

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Opponent Rating Result
Richard A Balatoni 122 0 - 1
Xavier Cowan 146 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-266 = (268 + 400 * (0 - 2)) / 2)