Event: Gordon Nobbs League

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Opponent Rating Result
Martyn Ingham 1454 1 - 0
Paul Green 1324 1 - 0
Paul Green 1324 1 - 0
Anthony Tatam 1528 1 - 0
Anthony Tatam 1528 0 - 1
Paul E Wood 1674 0 - 1
Paul E Wood 1674 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1558 = (10506 + 400 * (4 - 3)) / 7)

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