Event: Hillingdon Div 1

Opponent Rating Result
Leon HJ Fincham 1852 ½ - ½
Stuart JM Winter 1457 1 - 0
Joseph Laurencin 0 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1370 = (3309 + 400 * (2 - 0)) / 3)

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