Event: B Division

Opponent Rating Result
Paul F Cawley 2047 ½ - ½
Damian M McCarthy 1990 0 - 1
John Robinson 1883 0 - 1
Christopher Hodgson 1846 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1742 = (7766 + 400 * (0 - 2)) / 4)

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