Event: Division 1

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Opponent Rating Result
Thomas E Rendle 0 0 - 1
Richard A Bates 2378 0 - 1
Richard Britton 2230 0 - 1
Alan H Perkins 2154 ½ - ½
Richard Black 2056 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1604 = (8818 + 400 * (1 - 3)) / 5)

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Opponent Rating Result
Simon Wilks 2184 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1784 = (2184 + 400 * (0 - 1)) / 1)