Event: Book Prize - A 24/25

Opponent Rating Result
Philip Tarrant-Edwards 1775 ½ - ½
Cary Xie 1595 1 - 0
Christian Westbrook 1677
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1885 = (3370 + 400 * (1 - 0)) / 2)

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