Event: Durham League Division A

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Opponent Rating Result
Mike Ayton 1810 ½ - ½
Josh Smith 1598 0 - 1
Steve H Jefferies 1634 1 - 0
Steve H Jefferies 1634 ½ - ½
Oliver Montague 1555 1 - 0
Fedir Dyshliuk 0 0 - 1
Christopher Sayers 1597 1 - 0
Steve H Jefferies 1634 ½ - ½
Alex Potter 1480 1 - 0
Fedir Dyshliuk 0 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1374 = (12942 + 400 * (4 - 2)) / 10)

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