Event: Division 2

Opponent Rating Result
William H Luxton 1715 1 - 0
Paul Edwards 1759 1 - 0
Eric Granzelius 1839 0 - 1
William Cobb 1826 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1985 = (7139 + 400 * (3 - 1)) / 4)

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