Event: Silver Rook

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Opponent Rating Result
Georgi Hristov 1859 1 - 0
Francis J Bowers 1914 1 - 0
Marek Zajaczkowski 1585 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2186 = (5358 + 400 * (3 - 0)) / 3)

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