Event: League Division 2

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Opponent Rating Result
Jeff Dutton 1563 1 - 0
Randolph E Donahue 1789 0 - 1
Jim R Postill 1481 1 - 0
Stephen Burton 1495 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1782 = (6328 + 400 * (3 - 1)) / 4)

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