Event: Roy Bennett Trophy Group A

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Opponent Rating Result
Rob Aked 1100 ½ - ½
James Wolstenholme 1486 0 - 1
David S Johnson 1834 1 - 0
Rob Aked 1100 1 - 0
James Wolstenholme 1566 1 - 0
David S Johnson 1834 0 - 1
Jim Leech 1125 1 - 0
David S Johnson 1834 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1535 = (11879 + 400 * (4 - 3)) / 8)

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