Event: Weymouth U1850 2023

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Opponent Rating Result
Timothy M Jones 1722 1 - 0
Mark A Potter 1801 0 - 1
Ronnie Burton 1774 0 - 1
Ian P Blencowe 1591 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1522 = (6888 + 400 * (1 - 3)) / 4)

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