Event: Division 1

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Opponent Rating Result
Tom Shepherd 2093 ½ - ½
Jonas Zurba 1784 1 - 0
Graham R Iwi 1965 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2214 = (5842 + 400 * (2 - 0)) / 3)

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Opponent Rating Result
Mark Morris 2016 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1616 = (2016 + 400 * (0 - 1)) / 1)