Event: Super League

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Opponent Rating Result
Richard Maclannan 1819 ½ - ½
Richard Maclannan 1849 ½ - ½
Peter Dhonau 2018 0 - 1
Harry Davison 1846 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1783 = (7532 + 400 * (0 - 1)) / 4)

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