Event: Division 1

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Opponent Rating Result
David I Tipper 1767 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2167 = (1767 + 400 * (1 - 0)) / 1)

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Opponent Rating Result
David I Tipper 1759 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1759 = (1759 + 400 * (0 - 0)) / 1)