Event: NSDCA Division 4

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Opponent Rating Result
Gwyn Price 1093 0 - 1
Christopher Brian 1224 0 - 1
Daniel Watt 1225 1 - 0
Maria Sangurska 1100 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1161 = (4642 + 400 * (2 - 2)) / 4)

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