Event: League Division 2

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Opponent Rating Result
Jeff Dutton 1563 ½ - ½
Ian D Strickland 1646 1 - 0
Peter F Mason 1830 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1813 = (5039 + 400 * (1 - 0)) / 3)

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