Event: Lawrance Cup 2021-22

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Opponent Rating Result
Rahul Ghose 1810 ½ - ½
Rahul Ghose 1810 1 - 0
Ian D Hunnable 1990 ½ - ½
Ian D Hunnable 1990 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1900 = (7600 + 400 * (1 - 1)) / 4)

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