Event: NSDCA Division 4

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Opponent Rating Result
Ian Mullin 1236 0 - 1
Philip Grocott 1348 1 - 0
Daniel Watt 1225 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1403 = (3809 + 400 * (2 - 1)) / 3)

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