Event: 4-Board Division 2

Opponent Rating Result
William I Wright 1540 0 - 1
Olegs Dukalevs 1728 0 - 1
Richard Atkinson 1563 0 - 1
Neil Hambly 1375 1 - 0
Sean Smith 1150 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1311 = (7356 + 400 * (1 - 3)) / 5)

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