Event: Division C

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Opponent Rating Result
Robert Tinton 124 ½ - ½
Ken Gorman 101 ½ - ½
Ken Gorman 101 0 - 1
Ken Lawson 87 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-97 = (413 + 400 * (0 - 2)) / 4)

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