Event: Division 2

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Opponent Rating Result
John Hicks 115 0 - 1
Ellen Scattergood 100 1 - 0
Grenville Cross 104 0 - 1
Nicholas PA Wright 112 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

8 = (431 + 400 * (1 - 2)) / 4)

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