Event: League Division 1

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Opponent Rating Result
Richard Higham 1600 ½ - ½
Randolph E Donahue 1789 0 - 1
Peter Rawcliffe 1729 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1706 = (5118 + 400 * (1 - 1)) / 3)

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