Event: St Andrews Major Tournament

Opponent Rating Result
Dan Malbon 1300
Graeme C Reid 1413
David Atkin 1406
N Charles Clayton 1467 0 - 1
Andrew Olukpe 1551
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1067 = (1467 + 400 * (0 - 1)) / 1)

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