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Event: Online League Division 2 (Spring 2021)

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Opponent Rating Result
Xiling Wang 0 0 - 1
Georgi Velikov 1546 0 - 1
Gerry Stonehouse 1232 1 - 0
David Bourne 1415 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

848 = (4193 + 400 * (1 - 3)) / 4)

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