Event: Larry Guard League

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Opponent Rating Result
Anthony Tatam 92 0 - 1
Michael Ghillyer 56 1 - 0
Michael Ghillyer 56 ½ - ½
Ivan Singleton 75 0 - 1
T Klaus Tekniepe 73 1 - 0
James H Parsons 67 ½ - ½
James H Parsons 67 ½ - ½
Geoffrey Wilson 92 ½ - ½
T Klaus Tekniepe 73 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

28 = (651 + 400 * (2 - 3)) / 9)

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