Event: Christmas Rapid

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Opponent Rating Result
Mark Webb 1529 1 - 0
Raf Calumpiano 1311 0 - 1
Josh Bewsey-Holden 1500 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1580 = (4340 + 400 * (2 - 1)) / 3)

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