Event: League Division 2

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Opponent Rating Result
Harris Tariq 0 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

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

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Opponent Rating Result
Chris Tatham 1595 ½ - ½
Nigel Stansbie 1432 1 - 0
Harris Tariq 0 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1009 = (3027 + 400 * (1 - 1)) / 3)