Event: Division 5

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Opponent Rating Result
Albert Biermann 1045 0 - 1
Evaldas Navickis 1100 0 - 1
Barry T Redburn 1622 0 - 1
Mark Kirtley 1250 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1054 = (5017 + 400 * (1 - 3)) / 4)

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