Event: Division One

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Opponent Rating Result
Mark Winterbotham 152 1 - 0
Jim Falzarano 173 ½ - ½
Tobias Baumann 175 1 - 0
Gary Senior 193 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

273 = (693 + 400 * (2 - 1)) / 4)

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