Event: Riviera U1800 2023

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Opponent Rating Result
David B McGeeney 1695 0 - 1
Megan E O'Brien 1736 0 - 1
David R Rogers 1656 0 - 1
Elmira Walker 1626 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1378 = (6713 + 400 * (0 - 3)) / 4)

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