Event: Division 4

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Opponent Rating Result
Will Madeley 1390 0 - 1
Mike Croft 0 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

295 = (1390 + 400 * (0 - 2)) / 2)

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Opponent Rating Result
John Smith 0 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

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