Event: Weymouth U2200 2023

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Opponent Rating Result
Sean Gordon 2087 0 - 1
Geoff C Searing 1896 ½ - ½
William Adaway 1992 0 - 1
Roger D de Coverly 1997 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1793 = (7972 + 400 * (0 - 2)) / 4)

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