Event: Hillingdon Div 1

Opponent Rating Result
Nigel Colter 1696 ½ - ½
Antanas Zapolskis 2273 1 - 0
Raghu Kamath 1890 ½ - ½
Leon HJ Fincham 1724 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1996 = (7583 + 400 * (1 - 0)) / 4)

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