Event: Silver Rook

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Opponent Rating Result
Joe Cavalier 56 1 - 0
Angelica Rowe 69 0 - 1
Ben Emmerson 109 0 - 1
Dean Hepworth 104 ½ - ½
John Eagers 114 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

90 = (452 + 400 * (2 - 2)) / 5)

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