Event: Rosser Rapid

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Opponent Rating Result
Alex Bloomfield 0 1 - 0
Christopher Willoughby 1782 0 - 1
Andrew P Willoughby 1620 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1001 = (3402 + 400 * (1 - 2)) / 3)

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