Event: Five Counties Div 2

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Opponent	Rating	Result
Charles Lowick Higgie	2032	½ - ½
Avyukt Dasgupta	1632	0 - 1
Ashwin Ravithas	1476	½ - ½
William Castaneda	1665	1 - 0
Kate Walker	1647	1 - 0
Michael C Price	1692	1 - 0
Robert Parsons	1699	1 - 0
Sam Sturge	0	0 - 1

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

1580 = (11843 + 400 * (4 - 2)) / 8)