Event: Derby & District Division 1

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Opponent Rating Result
Martin Cobham 1752 1 - 0
D Martin Howard 1965 0 - 1
Carl Gartside 1846 1 - 0
Stephen G Wootton 1620 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1996 = (7183 + 400 * (3 - 1)) / 4)

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