Event: Division 5

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Opponent Rating Result
Eddie D Burke 76 ½ - ½
Colin Abell 115 0 - 1
Lukasz Michalek 110 0 - 1
Roger Coleman 79 ½ - ½
Oliver J Horrocks 87 1 - 0
Paul Clapham 98 0 - 1
Richard G Martin 47 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

30 = (612 + 400 * (2 - 3)) / 7)

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Opponent Rating Result
David P Price 119 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-281 = (119 + 400 * (0 - 1)) / 1)