Event: Division 4

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Opponent Rating Result
David Bean 1728 ½ - ½
Dave Mellon 1528 ½ - ½
Anthony Garrood 1643 ½ - ½
Mark J Fulleylove 1708 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1752 = (6607 + 400 * (1 - 0)) / 4)

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