Event: Online Division 1

Opponent Rating Result
Mark A Keady 1851 0 - 1
Frederick Rhine 2061 ½ - ½
Charles Lowick Higgie 2106 0 - 1
Mehmet N Altinsoy 2018 ½ - ½
Charles Lowick Higgie 2123 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1792 = (10159 + 400 * (0 - 3)) / 5)

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