Event: D&DCL Div 3

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Opponent	Rating	Result
Colin Ross	1457	0 - 1
Edward Brown	1481	0 - 1
Shourya Eaga	1518	1 - 0
Stefan Lewins	1573	½ - ½
Samuel Skinner	1176	1 - 0
Nigel D Marshall	1460	0 - 1
Douglas Bramley	1336	1 - 0
Ian R Morrell	1185	1 - 0
Richard Dawson	1593	½ - ½
Piotr Natoniewski	0	½ - ½
Nigel D Marshall	1446	½ - ½

performance = (sum(opponents ratings) + 400(wins-losses)) / games

1330 = (14225 + 400 * (4 - 3)) / 11)