Event: Riviera U1800 2023

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Opponent Rating Result
Michael J Gunn 1611 ½ - ½
David R Rogers 1667 1 - 0
Arthur Hibbitt 1737 0 - 1
Grant Daly 1566 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1745 = (6581 + 400 * (2 - 1)) / 4)

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