Event: Division One

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Opponent Rating Result
Jochen Wittmann 179 0 - 1
Stephen J Marsland 169 0 - 1
Rauno Jarvinen 172 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-227 = (520 + 400 * (0 - 3)) / 3)

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