Event: Division 3

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Opponent Rating Result
Perry Evans 1632 ½ - ½
Adamjeet Singh 1541 0 - 1
Dave Sykes 1553 0 - 1
David W Adam 1750 0 - 1
David Hewitt 0 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1135 = (6476 + 400 * (1 - 3)) / 5)

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