Event: 2023 Manx Championship

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Opponent Rating Result
Alan Ormsby 1880 0 - 1
Francis Thoday 1838 0 - 1
Brian Robert Woodard 1669 0 - 1
Samuel Sipos 1200 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1447 = (6587 + 400 * (1 - 3)) / 4)

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