Event: Division Two

Opponent Rating Result
Patrick CM Duncan 2098 ½ - ½
John A Edge 2037 ½ - ½
Peter R Kitson 2022 ½ - ½
David R Thomas 1781 1 - 0
Raymond Carpenter 1867 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2121 = (9805 + 400 * (2 - 0)) / 5)

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