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Event: Average under 1800

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Opponent Rating Result
David Payne 1787 1 - 0
Paul Spencer 1675 1 - 0
Rod B Newbery 1773 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2012 = (5235 + 400 * (2 - 0)) / 3)

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