Event: Riviera U1900 2023

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Opponent Rating Result
Spencer Lawrence 1809 1 - 0
Brian GE Gosling 1861 0 - 1
Tim F Woodward 1809 0 - 1
Yasser Tello 1875 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1639 = (7354 + 400 * (1 - 3)) / 4)

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