Event: Division B

Opponent Rating Result
Peter W Rose 1827 0 - 1
Brian J Spear 1797 0 - 1
Stephen W Berkley 1723 0 - 1
Kamil Ozdemir 1506 0 - 1
Vladimir Chtym 1470 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1425 = (8323 + 400 * (1 - 4)) / 5)

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