Event: Hillingdon Div 2

Opponent Rating Result
David A Stott 1513 1 - 0
Bodhana Sivanandan 1273 ½ - ½
David English 1472 1 - 0
S David Wray 1495 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1738 = (5753 + 400 * (3 - 0)) / 4)

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