Event: Durham League Division A

Opponent Rating Result
Zachary Cansdale 2076 0 - 1
Benjamin Perryman 1633 ½ - ½
Steve H Jefferies 1604 1 - 0
Jack Lally 0 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1328 = (5313 + 400 * (1 - 1)) / 4)

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