Event: Division 4

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Opponent Rating Result
Joshua T Brown 90 ½ - ½
Christopher Brian 90 ½ - ½
Brian Wagstaff 94 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

91 = (274 + 400 * (0 - 0)) / 3)

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Opponent Rating Result
Les Hall 90 1 - 0
Jeffrey G Tombs 97 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

494 = (187 + 400 * (2 - 0)) / 2)