Event: Summer Max 560 Division

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Opponent Rating Result
Chirag Guha 151 0 - 1
Derek Backhouse 144 0 - 1
Nigel Byrne 147 0 - 1
Alex R Holowczak 139 0 - 1
Gordon SG Christie 144 0 - 1
Peter Seeley 127 1 - 0
Chirag Guha 151 0 - 1
Derek Backhouse 144 ½ - ½
Nigel Byrne 147 ½ - ½
Alex R Holowczak 139 1 - 0
Gordon SG Christie 144 ½ - ½
Peter Seeley 127 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-25 = (1704 + 400 * (2 - 7)) / 12)

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