Event: Hillingdon Div 1

Opponent Rating Result
Leon HJ Fincham 1858 1 - 0
Kian Shah 1780 ½ - ½
Michael C Price 1737 1 - 0
Nevil Chan 1989 ½ - ½
David J White 1863 1 - 0
Siena Gurjar 1521 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2058 = (10748 + 400 * (4 - 0)) / 6)

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