Event: GP3 - November

Opponent Rating Result
Samuel Merchant 1557 0 - 1
William H Luxton 1610 1 - 0
Steve Merchant 1522 1 - 0
William F Tracey 1606 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1674 = (6295 + 400 * (2 - 1)) / 4)

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