Event: Division Cup A

Opponent Rating Result
Francis W Sagyaman 2061 0 - 1
Mark Fisher 0 0 - 1
Nigel W Morris 1554 0 - 1
Ed H Goodwin 1836 0 - 1
Kate M Donegan 1760 0 - 1
Mark Fisher 0 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

935 = (7211 + 400 * (1 - 5)) / 6)

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