Event: B&DCL Div 5

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Opponent	Rating	Result
Harshal Kulkarni	1510	1 - 0
Manuela M S Alves	1450	1 - 0
Barry MS Jolly	1601	½ - ½
Tim Joyce	1661	0 - 1
Harshal Kulkarni	1510	½ - ½
Alex Darke	1355	½ - ½
Ross M Mackay	1540	1 - 0
David F Burt	1339	1 - 0

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

1646 = (11966 + 400 * (4 - 1)) / 8)