Event: Division B

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Opponent Rating Result
Fred Okegbe 1450 1 - 0
Charles McNab 1623 0 - 1
Peter Thompson 1848 0 - 1
Peter Wallace 1421 1 - 0
David E Aspinall 1733 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1535 = (8075 + 400 * (2 - 3)) / 5)

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Opponent Rating Result
Darren Pickering 1576 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1176 = (1576 + 400 * (0 - 1)) / 1)