Event: LCA Division 2

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Opponent Rating Result
Gary Winson 475 1 - 0
Paul A Chaplin 1465 0 - 1
Ian McDonald 1724 0 - 1
Alex Squire 475 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1035 = (4139 + 400 * (2 - 2)) / 4)

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