Event: Weymouth U2200 2023

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Opponent Rating Result
Andrew F Footner 1997 0 - 1
Mark Thomas 1922 1 - 0
Mark Littleton 2017 ½ - ½
Ian C Clark 1972 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1877 = (7908 + 400 * (1 - 2)) / 4)

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