Event: Division Three

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Opponent Rating Result
Mark Davey 180 0 - 1
Colum Jezierski 172 1 - 0
Anthony R Fulton 179 0 - 1
Alan R Marshall 123 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

164 = (654 + 400 * (2 - 2)) / 4)

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