Event: 4 Board League B

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Opponent Rating Result
Tim J Rossell 1645 1 - 0
David Barlow 2044 ½ - ½
Mike Bramson 1971 1 - 0
Paul Solomons 1901 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2090 = (7561 + 400 * (2 - 0)) / 4)

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