Event: Riviera U1900 2023

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Opponent Rating Result
Hugh F Fenwick 1811 0 - 1
Megan E O'Brien 1697 0 - 1
Nigel W Dennis 1772 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1493 = (5280 + 400 * (0 - 2)) / 3)

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