Event: Division 2

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Opponent Rating Result
Jack Lee 0 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

400 = (0 + 400 * (1 - 0)) / 1)

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Opponent Rating Result
Thomas Ash 1603 0 - 1
Alex Dunn 1532 1 - 0
Jim Rowlands 1376 1 - 0
Gareth Cullen 1718 ½ - ½
David I Tipper 1778 ½ - ½
Debaditya Dasgupta 1715 ½ - ½
Barry R Davies 1453 1 - 0
Debaditya Dasgupta 1711 1 - 0
Philip Burnett 1397 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1765 = (14283 + 400 * (5 - 1)) / 9)