Event: Hillingdon Div 1

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Opponent	Rating	Result
Frank Zurstiege	1740	0 - 1
Simon Healeas	1841	0 - 1
Andrew Hayler	1967	0 - 1

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

1449 = (5548 + 400 * (0 - 3)) / 3)