Event: Division Two

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Opponent Rating Result
Arun Mahtani 88 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

488 = (88 + 400 * (1 - 0)) / 1)

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Opponent Rating Result
Cliff S Silverman 104 0 - 1
Moritz E Reuter 0 ½ - ½
Konstantinos Nikolis 89 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-202 = (193 + 400 * (0 - 2)) / 3)