Event: SCL Div 5

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Opponent	Rating	Result
Pedro Silva Ferreira	1570	0 - 1
N George	1416	1 - 0
Rosamund Hale	1508	½ - ½
David Long	1461	½ - ½
John Kooner	1402	1 - 0
Somnath Mitra	1416	½ - ½
Graeme Ford	1553	½ - ½

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

1532 = (10326 + 400 * (2 - 1)) / 7)