Event: 6th Somerset New Year Intermediate

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Opponent Rating Result
Nathan Cave 1589 0 - 1
Stephen A Horrell 0 0 - 1
Sam Wood 1662 1 - 0
Alastair JD Marston 1707 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1040 = (4958 + 400 * (1 - 3)) / 4)

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