Event: Hillingdon Div 1

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Opponent	Rating	Result
Leon HJ Fincham	1761	0 - 1
Ramin Tawab	1987	1 - 0
Alexander Cherniaev	2421	0 - 1
Robert Parsons	1724	0 - 1
Laith Hayali	1849	1 - 0
Hristo Colov	1832	0 - 1
Elijah Akinrotimi	1009	1 - 0
Russell Campbell	1781	½ - ½

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

1746 = (14364 + 400 * (3 - 4)) / 8)