Event: Division 2

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Opponent Rating Result
Eric Mansfield 108 ½ - ½
Anthony Jinks 113 0 - 1
Peter Hurn 113 1 - 0
William T Jones 30 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

191 = (364 + 400 * (2 - 1)) / 4)

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