Event: Durham League Division A

Opponent Rating Result
Fedir Dyshliuk 0 ½ - ½
Josh Smith 1598 1 - 0
Jonathan Sams 1817 ½ - ½
Jonathan Sams 1817 ½ - ½
Jack Gibson 0 ½ - ½
Richard J Harris 1790 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1237 = (7022 + 400 * (1 - 0)) / 6)

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