Event: Five Counties Div 2

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Opponent	Rating	Result
Robert Parsons	1699	1 - 0
Shrihan Koppuravuri	1493	0 - 1
Seb George	1301	1 - 0
Charlie J Ball	1414	0 - 1
Asoke K Nandi	1522	0 - 1
Karthisamy Selvaduarai	0	1 - 0
Rahul Babu	1375	0 - 1
Joseph Morrison	0	0 - 1
Paul Cox	0	0 - 1

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

845 = (8804 + 400 * (3 - 6)) / 9)