Event: Division 1

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Opponent Rating Result
Andrew Collins 1819 ½ - ½
Paul Rowan 1875 0 - 1
Philip RC Wood 1811 ½ - ½
Darren H Whitmore 1877 1 - 0
Richard S Dobedoe 1760 0 - 1
Raymond Carpenter 1941 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1781 = (11083 + 400 * (1 - 2)) / 6)

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